# Renu was sitting inside train A, which was travelling to 50km/h. Anoth

| Renu was sitting inside train A, which was travelling to 50km/h. Another train B, whose length was three times the length of A crossed her in the opposite direction in 15 seconds. If the speed of train B was 58 km/h, then the length of train A (in m) is :

Note : For this question, discrepancy is found in question/answer. Full Marks is being awarded to all candidates.

A. 150

B. 160

C. 210

D. 180

### Right Answer is: A

#### SOLUTION

Speed of Train A = 50km/h

Let the length of train = m

Speed of train B = 58 km/h

A.T.Q.

Length of train B =

Total speed = (speed of train A + speed of train B)

= 50 + 58 = 108 km/h

= 30 m/s

Required,

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