Question

. A boy travels with a average speed of 20m/s for 10 min. Therefore the distance travelled by him is _____km
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Answer 1

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$10 \: min \: = 10 \times 60 \: \: sec \: = 600 \: \: sec$

Hence

A boy travels with a average speed of 20m/s for 10 min. Therefore the distance travelled by him is

$= (600 \times 20) \: \: metre$

$= 12000 \: metre$

$= 12 \: \: km$

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Answer 2

Answer:

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Explanation:

speed = distance / time. With speed = 10 m/s and time = 20 x 60 s, the distance travelled = 10 x (20 x 60) m = 12 000 m or 12 km.

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