Question

Two trains are running with speeds 30 kmph and 58 kmph respectively in the same direction. A man in the slower train passes the faster train in 18 seconds. Find the length of the faster train?
A) 105 mts
B) 115 mts
C) 120 mts
D) 140 mts

Answer 1

Hii dear Here is ur answer



Option c is the right answer


Hope its help u

Answer 2

Answer:   D) 140 mts 

Solution-:

Speeds of two trains = 30 kmph and 58 kmph

=> Relative speed = 58 - 30 = 28 kmph = 28 x 5/18 m/s = 70/9 m/s

Given a man takes time to cross length of faster train = 18 sec

 

Now, required Length of faster train = speed x time = 70/9  x  18 = 140 mts.