How much time will a boy take to run four rounds along the perimeter of180m long &160m broad field if his speed is 8 km/h?
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Answers
Answered by
0
Answer:
he will takes 34 minutes
Step-by-step explanation:
the perimeter=2(180+160)
=2(340)=680
the distance for 1 round is 680m
the distance for 4 rounds=680*4=2720m
the speed=distance/time
then,time=distance/speed
so time =2720/8
=34
so the answer is 34 minutes
Answered by
0
Answer:
perimeter is 2(l+b)=2(180+160)=680m×4=2720
d=s×t
2720=8×t
t=340min
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