MCQ Practice

A man standing on a platform finds that a train takes 3 seconds to pass him and another train of the same length moving in the opposite direction takes 4 seconds. The time taken by the trains to pass each other will be :

A

$$2frac{3}{7}$$ seconds

B

$$3frac{3}{7}$$ seconds

C

$$4frac{3}{7}$$ seconds

D

$$5frac{3}{7}$$ seconds

Correct Answer: B