The perimeter of playground = 2800 m . And a boy take to go three times round the playground, if he walks at rate of 1.5 m per second . How many second to go three times .
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One round of the playground is equal to =2800m
But the boy walked three times
So, the boy walked 2800*3meters
This means the boy walked
=4400meters in total when walked three times.
And in one second the boy walks 1.5meters
In how many second does the boy walk three rounds of 4400metrs?
=4400/1.5
Equals to the time taken
The answer is :2933.3 seconds
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