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 How many minutes does Aditya take to cover a distance of 400 m, if runs at a speed of 20 kmph?

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 How many minutes does Aditya take to cover a distance of 400 m, if runs at a speed of 20 kmph?

A). 60 seconds

B). 72 seconds

C). 80 seconds

D). 82 seconds


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1 answers

1 vote
Answered by on | Votes 1 |

72 seconds



Aditya's speed = 20 kmph = 20 x 5/18 m/sec = 50/9 m/sec
Time taken to cover 400 m = (400 x 9/50) sec = 72 sec.

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