Question

A child runs at a speed of 10 metres per second. How much time will he take to
cover a distance of 1 km?
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Answer 1

Answer:

The child runs 10m in one second. So, he runs 1m in 1/10 seconds. Since 1km=1000m, time taken is 1000 x (1/10) =100 seconds or 1 min 40 seconds.

Step-by-step explanation:

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Answer 2

Answer:

10mts =1sec

1km=x

1km=1000mts

1000mts=100sec