Question

A 240-metre long train crosses a platform twice its length in 2 minutes . What is the speed of the train ?
A. 8 m/s
B. 4 m/s
C. 6 m/s
D. Cannot be determined

Answer 1

Correct Answer - C
Length of train = 240 m
Length of platform = `240 xx 2 = 480` m
Speed of train = `("length of train + length of platform")/("time")`
`= (240 + 480)/(2 xx 60) = (720)/(120) = 6` m/s