### Amit C Male, 31 Years

Associated for 8 Years 1 Month
Engineering Subjects Tutor

#### Activity Score - 823

Area: 32 More
Location: Mumbai, India
• Total Experience:
9 Years
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Teaches:
 Class 11 - 12 Mathematics Physics Computer Science IT & Computer Subjects All Boards INR 1000 / Hour College Level Mathematics Physics B.Tech Tuition B.Sc Tuition Polytechnic INR 1000 / Hour Engineering Subjects Mathematics Physics Mechanical IT Drawing Mechanics INR 1000 / Hour
• ## Question: What are the factors that affect thermal comfort of human body ?

Posted in: Mechanical | Date: 18/01/2016

Temperature and humidity account for most of the comfort. Temperatures close to 24 C is favorable for our body. Humidity between 25% to 60% is favorable. All the comfortable combinations can be looked up from a chart called comfort chart. *pressure around the globe doesnt vary much. Hence it is around 1atm everywhere.

• ## Question: When does a matter becomes a conductor of electricity?

Posted in: Polytechnic | Date: 18/01/2016

Not all matter can be conductors. Semi conductors can be. What make a conductor a conductor are free electrons. These are just electrons that are loosely present within the matter.

• ## Question: What is modulus of rigidity?

Posted in: Physics | Date: 19/01/2016

It is defined as ratio of shear stress to shear strain. However, it also comes into picture in different scenarios when shear stress is not directly applied. Example: Torsion. Though the reason of shear stress and torsional shear stress are different, the modulus of rigidity has same values in both cases. *of all the three moduli, modulus of rigidity is smallest.

• ## Question: Which part of the human brain controls body temperature?

Posted in: Biology | Date: 29/01/2016

hypothallamus.

Also responsible for homeostasis

• ## Question: What is the micro-organism that causes AIDS?

Posted in: Biology | Date: 29/01/2016

It is a virus, named HIV (human immuno-deficiency virus)

It can only survive inside a human body.

• ## Question: What are the characteristics of plantation agriculture?

Posted in: Geography | Date: 29/01/2016

(i) Plantation agriculture is highly sophisticated and scientific

(ii) There is specialization of single crop in plantation agriculture, e.g., coffee in Brazil, tea in India, rubber in Malaysia, etc.

(iii) Plantation crops are usually raised on large estates, of more than 40 hectares (100 acres) each, though the success of such crops has often encouraged other farmers to grow them so that small holdings exist side by side with the large estates.

(iv) Foreign ownership and local labour:

Most of the largest estates are owned by Europeans. For example, most Malaysian rubber estates were originally in the hands of British companies with their head offices in London, and were managed and supervised by Englishmen.

(v) Farming in estates is scientifically managed:

Work in estates is executed with specialised skill, and wherever possible with the application of machinery and fertilizers. It aims at high yields, high quality production and a large output, most of which is exported.

(vi) Heavy capital outlay:

This is a very expensive undertaking especially under tropical conditions where maintenance costs are also high. Plantations are manned more and more by local staff, however, less adminis­trative expenses are incurred, but the overall production cost is still high, especially where labour is highly unionised as in Indian and Sri Lankan tea estates.

(vii) Plantation agriculture is an export-oriented agriculture:

Nearly the entire product of plantation agriculture is generally exported to the international market. Therefore, it requires a better communication network, packaging and processing facilities.

(viii) Unlike other forms of agriculture, plantations are well-planned not only in terms of field structure but also having facilities like residence, transport, hospitals, retail markets, etc., for workers and associated people and their families.

(ix) Plantation agriculture often encourages migration from other countries. In colonial period thousands of people migrated from one place to another for work. In this way, cultural exchange occurs.

(x) Most of the crops grown in plantation agriculture have a life cycle of more than two years. Natural rubber, coconuts, oil palm, tea, cocoa, and coffee are all tree crops and take years to mature, but afterwards they are productive for long periods.

• ## Question: What are the problems that faced by the sugarcane cultivators in India?

Posted in: Geography | Date: 29/01/2016

Problems of Sugarcane Farmers:  Sugarcane farmers face a host of problems, both at production and marketing stages of the crop. Some important ones are as under: i) Farmers are not made to get new/recommended varieties of sugarcane with the result that they are compelled to sow old/odd varieties with low yield and lesser sucrose contents. Thus the benefits of the results obtained at the sugarcane research stations are hardly passed on to the farmers. Therefore, the sugar mills should deliver seeds to farmers at the fields. ii) Inputs such as fertilizers and recommended pesticides are not available to farmers at appropriate time and at affordable rates. iii) Sugarcane is a long duration crop and needs high water requirements. However, there is scarcity of water in the canals and the tube-wells which badly affect the yield of the crop. iv) Late fixation of support price of sugarcane by the Government.- The fixation of support price of sugarcane has remained a point of contention between the sugar mills and the farmers for years. The resultant sugarcane shortage due to confrontation between the sugar mills and the farmers had badly affected consumers and other industries. v). Late commencement of crushing season by the sugar millers.- It has been observed that sugarcane crushing season is started very late by the sugar mills and ends too soon. The delay in crushing season hits the farmers in two ways: (a) loss in weight; and (b) delay in wheat sowing on the land vacated from sugarcane. vi) Late payment to the farmers by the sugar millers.- It has been a common observation that some sugar mills make payment to the farmers late with the result that the later are unable to purchase inputs for the following crops. vii) Getting of loans from the banks/other lending agencies is an uphill task which should be made easy so that the farmers get loans from the lending agencies for the purchase of inputs on time. viii) Sugarcane farmers lack any effective voice in the policy formation of sugarcane crop. They are not consulted to defend their interest which further reduces their bargaining power compared to the considerably more powerful Pakistan Sugar Mills Association (PSMA).

• ## Question: Which day is celebrated as the Human Rights Day?

Posted in: History | Date: 29/01/2016

December 10 of every year

• ## Question: What is 'Veto power'?

Posted in: History | Date: 29/01/2016

Let's say a decision is made by a voting majority.

However, one of the voters do not agree with the final result, then he/she can overturn the result using his/her veto power.

• ## Question: What is the Historical importance of 26th January, 1930?

Posted in: History | Date: 29/01/2016

On 26th january, 1930 Indian people almost acquired freedom. Hence, this day was then realized as independence day. But later they realized that they weren't free yet.

On the same day, 20 years later, the constitution was accepted and since then renamed as republic day

• ## Question: Who were the leaders of the Khilafat Movement?

Posted in: History | Date: 29/01/2016

A campaign in defense of the caliph was launched, led in India by the brothers Shaukat and Muḥammad ʿAlī and by Abul Kalam Azad. The leaders joined forces with Mahatma Gandhi's noncooperation movement for Indian freedom, promising nonviolence in return for his support of the Khilafat movement

• ## Question: Which fluid transports fatty acid and glycerol?

Posted in: Biology | Date: 29/01/2016

Lymph.

It is a part of our blood and responsible for transferring fatty acid and glycerol.

Lymph is a bit yellow and transparent.

• ## Question: How can an animal cell be distinguished from a plant cell?

Posted in: Biology | Date: 29/01/2016

Most prominent difference is the presence of chlorophyll. The plant cell has a green pigment while animal cell doesnt

• ## Question: Am I eligible for EAMCET?

Posted in: EAMCET | Date: 29/01/2016

No.

It is for Telangana and Andhra Pradesh

• ## Question: Is this a good decision to study in communication systems?

Posted in: Effective Communication | Date: 29/01/2016

The opportunities are less.

But then you can also landin HR, which is one of the most coveted.

• ## Question: What are the career opportunities after doing M.Sc (microbiology)?

Posted in: MicroBiology | Date: 29/01/2016

Many.

Pharmaceutical industries are the prime blooming sector you should be looking at.

• ## Question: Why was the Dandi March undertaken?

Posted in: History | Date: 29/01/2016

British government levied tax on salt for Indians.

Gandhiji, with Dandi march, showed that salt is available freely and should not be taxed.

The march was symbolic.

• ## Question: What does the word 'Swadeshi' as used by Gandhiji imply?

Posted in: History | Date: 29/01/2016

• ## Question: Which muscles help in the inspiration of air?

Posted in: Biology | Date: 29/01/2016

diaphragm present just above the abdomen

• ## Question: What are the democratic rights of a citizen?

Posted in: Political Science | Date: 15/02/2016

1. Right to vote

2. Right to participate in an election

3. Right to campaign for his.her election

• ## Question: What is the aim of the United Nations?

Posted in: History | Date: 15/02/2016

1. to prevent international conflicts

2. to resolve conflicts

3. to enforce laws and regulations that ensure peaceful operations between nations

4. to ensure that developing countries are being dealt fairly

• ## Question: What is the importance of electronics in defense?

Posted in: Geography | Date: 15/02/2016

2. Missile aiming,launching and alignment (course correction)

3. Satellite imaging and alarming

and many many others

• ## Question: If the earth attracts an apple, does the apple also attract the earth?

Posted in: Physics | Date: 15/02/2016

yes, it does.

Infact, both attract each other with the same force.

But, the reason why apple moves towards the earth and not the other way, is because earth is very very very heavy. (6 x 10^24 kg to be precise) So, its inertia is also huge. As apple has very small inertia, it can move easily.

• ## Question: What are the disadvantages of conventional sources of energy?

Posted in: Geography | Date: 15/02/2016

1. they are very low efficient

2. they are getting scarce

3. they have a huge carbon footprint

• ## Question: What in the relationship between the unit of S.I and commercial electricity?

Posted in: Physics | Date: 15/02/2016

commercial electricity is measured in terms of energy.

the energy commercially is measured in units, called kW hr whereas the SI unit is J (or Watt-seconds)

1 kWhr = 1000 W x 3600 seconds = 3.6 x 10^6 J

• ## Question: What happens to kinetic energy when velocity of a body is tripled?

Posted in: Physics | Date: 15/02/2016

as it is directly proportional to v^2

KE2/KE1 = V2^2/V1^2 = (3V1)^2/V1^2 = 9V1^2/V1^2 = 9

Hence, it will become 9 times

• ## Question: What is the universal law of Gravitation?

Posted in: Physics | Date: 15/02/2016

Any two masses in the universe attract each other with a force which is directly proportional to the product of their masses and inversel proportional to the square of the distance between them.

F = Gm1m2/R^2

• ## Question: What causes the friction?

Posted in: Physics | Date: 15/02/2016

on the micro level, even the smooth surfaces appear as rough (i.e having hills and valleys.)

These hills and valleys interlock when the surfaces come into contact.

As one tries to move the surfaces, these interlockings prevent them and hence friction arises.

Deeper the valleys, more the friction.

• ## Question: What is the numerical value of Avogadro number?

Posted in: Chemistry | Date: 20/02/2016

6.023 x 10^23 entities per mole

• ## Question: Which method can be used to separate a mixture of naphthalene & common salt?

Posted in: Chemistry | Date: 20/02/2016

sublimation.

As naphthalene is highly sublime, it will sublimate (convert into gas) when exposed to heat.

Hence, keeping them in sunlight will do.

• ## Question: What is meant by ‘Momentum’?

Posted in: Physics | Date: 20/02/2016

Momentum can be called as motion content of a body.

It has no general definition but it gives an idea of how difficult it is to stop a moving body.

Mathematically its value is

p = mass x velocity

Its SI unit is kgm/s or Ns

• ## Question: What is echo?

Posted in: Physics | Date: 20/02/2016

Echo is a relection of sound.

NOT just any reflection.

The original sound and the reflected sound must have atleast a time separation of 0.1 sec. Then and only then can an echo be heard.

• ## Question: In which diseases the immunization is not possible?

Posted in: Biology | Date: 20/02/2016

AIDS

• ## Question: What is meant by the statement ‘The Right to freedom is actually a cluster of ...

Posted in: Social Studies | Date: 20/02/2016

When a person is granted freedom, he/she has the ability to decide varios things for his life.

1. clothes 2. religion 3. life partner 4. sexual orientation, etc

so granting freedom would mean granting the abilities to choose all those individually.

Hence, right to freedom is a cluster of rights

• ## Question: What are the career prospects for a graduate in physics?

Posted in: Physics | Date: 20/02/2016

1. research

2. teaching

3. government employee

• ## Question: What are the career prospects for a graduate in Physics?

Posted in: Physics | Date: 20/02/2016

1. research

2. teaching

3. government employee

• ## Question: What are the possible causes of Physics and how it is corrected?

Posted in: Physics | Date: 20/02/2016

If you mean possible causes of Physics to exist, then the answer is very simple.

Equilibrium.

Anything always wants to come into equilibrium. That's the whole aim of the process the Universe is going through.

• ## Question: I am a student of class 12 science. I want to do CA. What will be my first step ...

Posted in: Commerce Subjects | Date: 20/02/2016

Apply for CPT exam and prepare for it.

• ## Question: What is the application of Boolean Algebra in Computer Science?

Posted in: Computer Science | Date: 20/02/2016

What we call true / false in english is what computer recognizes as 1 / 0

these are also called boolean numbers.

The boolean algebra deals with various possible combinations and results of 1s and 0s.

• ## Question: Can you explain the use of biotechnology in medical sciences ?

Posted in: Biology | Date: 20/02/2016

1. fermentations

2. medicines.

3. food preservation

4. genetic engineering

5. hybridization

6. vegetation

etc etc etc

• ## Question: What are the uses of photography in the forensic sciences ?

Posted in: Physics | Date: 20/02/2016

1. to keep records

2. to see the microscopic views of objects used for assault

3. finger printing

etc

• ## Question: What are the ill-effects of science?

Posted in: Physics | Date: 20/02/2016

1. pollution- air, water, noise and light

2. mental stress

3. breathing diseases

• ## Question: Explain why progress of science has caused some ill-effects.

Posted in: Physics | Date: 20/02/2016

1. pollution- air, water, noise and light

2. mental stress

3. breathing diseases

• ## Question: What should I do after completion Electrical Engineering?

Posted in: Electrical | Date: 20/02/2016

Appear for GATE and apply for a government job.

• ## Question: What are the Heavy Engineering industrial units in India?

Posted in: Geography | Date: 20/02/2016

Gammon india

CAT

Sterling Wilson

Shahpoorji Pallonji

• ## Question: What should I do after completion of Automobile Engineering?

Posted in: Mechanical | Date: 20/02/2016

Jobs in automobile are very less.

So, better go for masters or MBA

• ## Question: What is robotics engineering?

Posted in: Robotics | Date: 20/02/2016

It involves mainly mechatronics.

It includes synchronization of electronics, programming and mechanisms.

• ## Question: A man walking with speed 'v' constant in magnitude and direction passes under a ...

Posted in: Physics | Date: 04/06/2016

let distance of man =x

by property of similar triangles,

(y-x)/x= h/H

on differentiating wrt t we get

Vy = v(1+h/H)

• ## Question: if i get no admission in iit which college is best for engineering?

Posted in: Actuarial Science,Computer Science | Date: 04/06/2016

Where are you from?

Pune's best college is COEP

Mumbai's best is SPCE and VJTI

Then there is NIT and VIT in south

• ## Question: What is linux and why it is deffer from ms OS?

Posted in: Computer Hardware,Unix/Linux | Date: 04/06/2016

That means you can tweak the inbuilt programs if you want to. Though it is suggested that you don't.

Posted in: Communicative English,English | Date: 04/06/2016

Watch WWE in English. That's how I learnt most of my English

• ## Question: Where did all the water on earth come from?

Posted in: Geography,Geography,Geography,Geography | Date: 04/06/2016

It could not have come from meteorites. As the percentage of water is too vast.

It is mostly because of the coincidence that there was a large amount of H2 and O2 present in the atmosphere in the early stages of the earth. So, it reacted and made H20.

• ## Question: What was the First organic cell

Posted in: Biology,Biology,Biology,Bio Chemistry,Bio Technology,Chemistry,Chemistry,Chemistry,Chemistry,Chemistry,Chemical | Date: 04/06/2016

It is believed that amoeba was the first unicellular organism formed in water on earth.

• ## Question: How is infinity concept understood in Mathematics

Posted in: Mathematics,Mathematics,Mathematics,Mathematics,Mathematics | Date: 04/06/2016

Mathematically it has no defined value. So your assumption that 0*% isn't really valid.

Consider this.

Anything multiplied by zero is zero. so 0*% should be 0

Also, anything multipled by infinity is infinity. So, 0*% should be %.

Mathematicians don't really know what is the solution to this problem. Hence, such values are simple called undefined.

This problem has always been like chicken and eggs. People still scratch their heads over it

• ## Question: Have completed engineering in computer science and interested to learn 3d printi...

Posted in: 3D Printing | Date: 04/06/2016

you can learn it.

Before going for iyt, learn a few basics.

1. How normal printers work

2. spatial geometry

3. cordinate systems

4. matrix transformations

5. vector algebra

• ## Question: _ _ _ _ is not a multimedia application/software.

Posted in: Basic Computer | Date: 04/06/2016

pagemaker

• ## Question: which extension is given to world document by default?

Posted in: Basic Computer | Date: 04/06/2016

.doc

• ## Question: What is the fermentation process?

Posted in: Chemistry | Date: 04/06/2016

It is a biochemical process.

It requires a base and strain.

The strain is usually an aerobic bacteria. It starts to degrade the base to produce its own food.

In the process , the base gets converted into something else chemically and physically.

This process is called fermentation.

eg: yoghurt is formed from milk (base) and bacteria (strain)

alcohol is formed from any starchy substance (base) and yeast (strain)

• ## Question: What are the advantages and limitations of solar cookers?

Posted in: Physics | Date: 04/06/2016

1.economic

2. no heat loss

limitations:

1. only useful in daytime

2. very slow

• ## Question: What is the construction of a box type solar cooker?

Posted in: Physics | Date: 04/06/2016

a black box with a concentrating glass as the lid and a mirror.

• ## Question: What are the differences between terrestrial planets and Jovian planets?

Posted in: Physics | Date: 04/06/2016

Terrestrial planets have solid surfaces.

jovian planets have gaseous surfaces.

terrestial planets are inner planet(Earth, Mercury, Venus and Mars) and jovian are outer planet(Jupiter, Saturn, Uranus and Neptune)

• ## Question: What are the balanced chemical equations for the reactions taking place when dry...

Posted in: Chemistry | Date: 04/06/2016

CuSO4.5H2O +conc.H2SO4(aq)   -->   CuSO4(s) +SO2(g) +H2O(l)

hydrated                                                     anhydrous

• ## Question: What are the balanced chemical equations for the reactions taking place when con...

Posted in: Chemistry | Date: 04/06/2016

C12H22O11 + H2SO4 + 1/2 O2 → 11C + CO2 + 12H2O + SO2

sugar            sulphuric acid                carbon                           sulphur dioxode

• ## Question: How is corrosion of iron prevented by coating i with a layer of oil?

Posted in: Physics | Date: 04/06/2016

Most of the corrosion happens due to reaction of metal surface with the gases in atmosphere.

An oil coating prevents the gases coming into contact with the surface and hence, corrosion is avoided.

• ## Question: Why aluminium does not corrode like iron?

Posted in: Physics | Date: 04/06/2016

Aluminium cannot easily react with O2.

Hence gets oxidized with more difficulty.

• ## Question: What is meant by corrosion of iron?

Posted in: Physics | Date: 04/06/2016

The surface of iron reacts with oxygen in atmosphere to form iron oxide.

problems:

iron oxide is much weaker than iron. hence, things like beams, shafts, axles can break after corrosion easily

iron oxide is a bad conductor. Hence resistance of wires increase. Also, more heat is wasted in cooking with corroded vessels.

• ## Question: How does the strength of the magnetic field at the centre of a circular coil of ...

Posted in: Physics | Date: 04/06/2016

B = Mu x N x I / (2 x R)

Mu = magnetic permeability of free space

N= no. of turns in coil

I = current

Hence B and I are directly proportional

• ## Question: How does the strength of the magnetic field at the centre of a circular coil of ...

Posted in: Physics | Date: 04/06/2016

B = Mu x N x I / (2 x R)

Mu = magnetic permeability of free space

N= no. of turns in coil

I = current

Hence B and R are inversely proportional

• ## Question: How does the strength of the magnetic field at the centre of a circular coil of ...

Posted in: Physics | Date: 04/06/2016

B = Mu x N x I / (2 x R)

Mu = magnetic permeability of free space

N= no. of turns in coil

I = current

Hence, B and N are directly proportional

• ## Question: What is the function of mitochondria in a cell?

Posted in: Biology | Date: 20/06/2016

It produces ATP.

Also called Power house of the cell.

• ## Question: An aircraft is flying at a height of 3400 m above the ground. If the angle subte...

Posted in: Physics | Date: 20/06/2016

Height = adjacent side = 3400m

Angle made with the ground = 30 deg

So, angle made with the adjacent side = 90-30 = 60 deg

Now, tan = Opp / Adj

tan 60 = Opp / 3400

Opp = 3400 x tan 60

= 3400 x (root of 3)

= 3400 x 1.732 = 5888.8 m

Speed = dist / time = 5888.8 /10 = 588.88 m/s

• ## Question: Explain the existence of laplace transform?

Posted in: Mathematics | Date: 20/06/2016

It is mostly used in feedback mechanisms.

• ## Question: A bullet fired at an angle of 30° with the horizontal hits the ground 3km away....

Posted in: Physics | Date: 20/06/2016

R = (V^2 x Sin 2Q)/g

3000 x 10 / sin 60  = V^2

V = 186 m/s

Rmax = v^2/g = 3459 m

As the target is farther than the maximum range, it is not possible

• ## Question: Name the source from which the earth receives ultraviolet radiation.

Posted in: Physics | Date: 21/06/2016

The closest source is the Sun.

The sun emits all sorts of radiations. UV is just a fraction of it.

Although radiation can be received from other parts of universes too. But those radiations are very weak as they come from very very far.

• ## Question: What can I do after diploma in mechanical engineering?

Posted in: Mechanical | Date: 21/06/2016

You can go for a Bachelor's degree.

OR

Get a job. But jobs after diploma dont really pay much.

• ## Question: I have done diploma in Mechanical Engineer and I want to be an astronaut. What s...

Posted in: Mechanical | Date: 21/06/2016

In the early days, anyone could become an astronaut. They just had to be experienced pilots and physically fit.

Nowadays Astronauts need to have specific degrees like Aerospace and Aeronautics.

Plus, it has become a lot tougher. So, you need to atleast have a Masters degree in the field.

• ## Question: How does a simple hydraulic accumulator ?

Posted in: Mechanical | Date: 21/06/2016

They can store fluid and then supply it when required. Just like a battery stores charge.

The only difference is that battery supplies electrical energy while the hydraulic accumulator supplies hydraulic energy.

• ## Question: What is Net Positive Suction Head ?

Posted in: Mechanical | Date: 21/06/2016

The minimum pressure required in a pump to avoid cavitation.

Cavitation is the process of forming bubbles in the fluid.

• ## Question: What are unit quantities? Discuss their importance.

Posted in: Mechanical | Date: 21/06/2016

The strength of any physical quantity can be described in terms of its unit quantity.

For example. Unit of acceleration is m/s^2.

The acceleration due to gravity of earth is 9.81 times stronger than this value. Hence its value is given as 9.81 m/s^2

Unit quantities are decided to have the uniformity of the values around the world.

• ## Question: What are the differences between Natural and Mechanical refrigeration.

Posted in: Mechanical | Date: 21/06/2016

Natural: Economical, Slow, Less effective, Harmless to environment, Eg. Porous Pot

Mechanical: Less economical, Fast, More effective, Harmful to environment, Eg. AC

• ## Question: What are engineering applications of cryogenics?

Posted in: Mechanical | Date: 21/06/2016

1. Cryogenic heat treatment. It increases the strength of a metal.

2. Superconductivity: Decreases the resistance of a conductor to produce high curent. Used in MAGLEV trains.

3. Preservation: of samples like extinct species, semen, blood, etc.

• ## Question: Pipe A can fill a tank in 8 hr and pipe B can fill it in 6 hr. If they are opene...

Posted in: Bank PO | Date: 21/09/2017

As per given data, A can fill 1/8 tank in 1 hr and B can fill 1/6 in 1 hr. If A is opened first 1/8 + 1/6 + 1/8 + 1/6 + 1/8+1/6+1/8+1/6=1 in this fasion the tank will get full in 7 hrs.

• ## Question: A, B and C together can finish a work in 4 days. If A alone can finish the same ...

Posted in: Bank PO | Date: 21/09/2017

Here's a shortcut for such time related problems 1/4=1/12 + 1/18+1/x multiply by lcm 36 9=3+2+36/x 4=36/x x=9days so c can finish the work alone in 9 days

• ## Question: If A 280 m long train crosses a platform thrice its length in 50 seconds. What i...

Posted in: Bank PO | Date: 21/09/2017

It "crosses" the platform. Means it travels the distance equal to platform pluse its own length. so, x = 280x3 + 280 = 1120m t =50 v = x/t = 1120/50 m/s to convert it into kmph multiply by 18/5 (remember this) v = 112/5x 18/5 = 896/25 = 36kmph approx

• ## Question: A train takes 18 sec to cross a station which is 162 m long and takes 15 sec to ...

Posted in: Mathematics | Date: 21/09/2017

The difference in the datas will show that train can travel 42m in 3s. Hence its speed is 42/3=14 m/s now if it crosses the platform, it means platform length + train length = distance platform length + train length = speed x time so, 120 + x = 14 x15 x = 210-120=90m

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