A train, 150 m long, is running at 90 km/h. How long (in seconds) will it take to clear a platform that is 300 m long?

A. 6

B. 18

C. 12

D. 50

Answer: Option B

Solution(By Examveda Team)

$$\eqalign{ & 90{\text{ km/h}} \to \frac{{90 \times 5}}{{18}} = 25{\text{ m/s}} \cr & {\text{Time}} = \frac{{150 + 300}}{{25}} = 18\,{\text{seconds}} \cr} $$