A child runs at a speed of 10 metres per second How much time will take to cover a distance of km? hind if answer will come in m/sec
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Answered by
2
By unitary method,
10 meters = 1second
1 meter = 1/10 second
1000 meters = 1000/10 seconds
therefore time taken to run 1 km = 100 seconds
Answered by
1
Answer:
100 seconds or 1 min 40 seconds.
Step-by-step explanation:
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.
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