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12. A train of length 200m crosses a pla...

12. A train of length 200m crosses a platform of length 100m in 12 seconds. Find the speed ofthe train (in m/s)a) 40b) 25d) 18c) 60

A

40

B

25

C

60

D

18

Text Solution

Verified by Experts

The correct Answer is:
B
`"Speed" = ("Distance")/("Time")`
Distance = Length of the train + Length of the platform
= 200 + 100 = 300 m
`therefore " Speed" = (300)/(12) = "m/s"`
Hence, the correct option is (b).
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