RRB Group D Model Paper 5 with solutions

Question : 47 of 100

Marks: +1, -0

If a train 280 metres long runs at a speed of 7.4 m/s, how much time will it take to cross a platform 460 metres long?

Solution:

(3) We use the following formula for non-point stationary objects:
t =

(L_T + L_o)/ S_T

∴ t =

(280+460)/7.4 = 740/7.4

= 100 seconds

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