Question

A train running at a speed of 54 km/hr passes
a man standing on the platform in 9 seconds.
Length of the train in metre is:

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Answer 1

$answer$

speed of a train = 54 km/hr

man standing on a platform in 9 seconds

length of the train =

to convert km/hr to m/s then multiply by 5/18

$54 \times \frac{5}{18} = 3 \times 5 = 15$

15 m/s

$\\ distance = speed \: \times \: time$

15×9=135 m