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What's Your Question?
Answer

Let the distance be x km

then (x/60 - x/80) X 60 =40

so 20x/4800 = 40/60

so x = 160

so the distance between Delhi and Kanpur is 160 km

 

Answer

if the distance would have been 240km

a would require 4hr

while b would require 3hr

which means it would form a difference of 60min for distance 240km

1min for difference 240/60=4km

40min difference for 4*40=160km

Answer
Speed ratio=60:80=3:4 Distance is same for both So, time ratio=4:3=4a:3a This difference is equal to the 40mins mentioned. So, a=40/60=2/3 Time taken by train A=4* (2/3)=8/3 Distance=(8/3)*60 =160km
Answer
t1=x/60 t2=x/80 x/80+4/6=x/60 x=160
Answer
x/60 = x/80 + 40/60 x = 160 km ans
Answer
Greetings. The basic formula (Distance = Speed x Time) is used to solve this question. First, let us convert the speed in terms of km/minute. 60km/hr = 60km/1hour => 60km/60minutes => 2km/minute. 80km/hr => 4/3 km/minute. Let the Time be x minutes to reach the destination. B reaches the destination in x minutes and A reaches the destination in (x+40) minutes. We already know that the distance is constant in this case. Therefore, (4/3)(x) = (1)(x+40) => 4x = 3x + 120. Therefore, x = 120 minutes. We know that A travels a total of 120+40 = 160 minutes. If A travels 1km in 1 minutes, it travels 160 km in 160 minutes. Therefore, the distance between Delhi and Kanpur is 160 km.

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