Question

A boy runs a distance of 180 m in 20 seconds .What is the speed of the boy in km/hr? A 33.4 km/hr B 32.4 m/s C 9 m/s D 32.4 km/hr

Answer 1

your answer is option "D) 32.4km/h"

explanation:

distance = 180m

time = 20s

speed = 180/20

speed = 9m/s

9m/s = 32.4km/h

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Answer 2

Answer:

9 m/s

Explanation:

here,

d=180m

t=20s

s=d/t

= 180/20

=9m/s