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Answer

Total number of cards in a deck = 52 

Total number of aces = 4

Total number of red cards = Total number of cards not red (black) = 26

(i) P(an ace)=Total number of ace/Total number of cards =4/52=1/13

     P(an ace) = 1/13

(ii) P(not a red card)=number of cards not red/Total number of cards=26/52=1/2

     P(not a red card) = 1/2

Answer

Total number of pens = 18

Number of Yellow pens P(Y) = 7

Number of Blue pens P(B) = 6

Number of Green pens P(G)= 5

(i)Probablity of pen neither blue nor green = p(yellow pen) = Number of yellow pens /Total number of pens

p= 7/18

(ii) Probablity of pen is not blue = P(either pen is yellow or green)  P= number of yellow pens + Number of green pens / Total number of pens

p(not blue) = 5+7/18 = 12/18 =2/3

 So, p(not blue) = 2/3

Answer

Answer = 6 

Let other two sides = 2x =5 (given)

Answer

Tryptophan is heaviest amino acid with Chemical formula C11H12N2O2. 

Answer

So VatMarked price = 5000

After getting discount of 20% = price he pays to buy = 5000*80 % =4000

Sales tax charged = 5% so total price he pays to buy good = 4000*5/100 =200

Collected tax = 7% so total chaged from customer = 5000*7/100 = 350 

So VAT = 350-200 = 150

Answer

= Radius of circle ‘p’ = 15

So Radius of circle Q = 15+ 7 = 22

Similarly Radius of circle R = 15 + 7 + 7 = 29

In Same way find areas of all circles individually as

Area of circle P = 22/7*15*15 = 706.5

Similarly area of circle Q And R are resp. 1519 and 2640.74 (with help of 3.14*r*r) 

So area of ring Q = Area of circle Q — area of circle P = 1519– 706.5 = 812.5 cm

Similarly area lf ring R = area of circle R —area of circle Q = 2640.74–1519=1121.74 cm

Answer

Four Modules: Writing, Listening , Speaking & Reading

Answer

This is Change in Gibbs free energy when i mole of substance is produced from reactants.

Answer

Nitty: Gritty

Answer

Answer is B. Since average depends upon number of children. As number of children in Group D are more so average will be more.