A train of length 500 feet crosses a platform of length 700 feet in 10 seconds. The speed of the train is?

A. 70 ft/second

B. 85 ft/second

C. 100 ft/second

D. 120 ft/second

Answer: Option D

Solution(By Examveda Team)

$$\eqalign{ & {\text{Speed of the train}} \cr & {\text{ = }}\frac{{700 + 500}}{{10}} \cr & {\text{ = 120 ft/second}} \cr} $$