Question

a child runs at a speed of 10 metres per second. jow much timw will he take to cover a distance of 1 km​

Answer 1

Answer:

1 min 40 sec

Explanation:

1 KM=1000 m

speed of child=10 m/s

time taken to reach 1 KM=1000/10

=100 S

1 minute=60 sec.

time taken=100/60

=1.40 m

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Answer 2

Answer:

he will need 100 seconds

Explanation:

speed of child = 10m/second

distance he has to cover = 1 kilometre

time to cover = 1 km = 1000 meter

so,1000÷10=100

so he will need 100 seconds to cover 1 kilometre