RRB NTPC Mains or Stage 2 Model Paper 9 with solutions

Question : 37 of 120

Marks: +1, -0

A train 100 m long passes a bridge at the rate of 72 km/h per hour in 25 seconds. The length of the bridge is :

Solution:

(b) Let the length of the bridge be x m.
Now,

(x + 100) = 72 × 25 × 5/18= 500

⇒ x = 500 – 100 = 400 m

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