1.

A train is traveling at a speed of 36 km per hour crosses a platform in 20 seconds and a man standing a platform in 10 seconds what is he length of platform in meters

Answer»

Answer:

100 m

Explanation:

DISTANCE TRAVELLED by train to cross the man = Length of the train = L

Distance = Speed × Time

L = (36 × 5/18 m/s) × 10 s

L = 100 m

Length of the PLATFORM = L'

Distance travelled by train to COMPLETELY cross the platform = L + L' = 100 m + L'

Distance = Speed × Time

100 m + L' = (36 × 5/18 m/s) × 20 s

100 m + L' = 200 m

L' = 100 m



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