nagma runs around a rectangular park 180m long and 120m wide at the rate of 7.5km/hour.In how much time will she complete five rounds?
Answers
Answered by
71
perimeter=2(l+b)
=2(180+120).
=2×300=600m
distance covered in 5 rounds=5×300
=1500m
time taken=distance/speed
=1500/7.5. or 1500m /7500m/h
=1/5h or 12minutes.
=2(180+120).
=2×300=600m
distance covered in 5 rounds=5×300
=1500m
time taken=distance/speed
=1500/7.5. or 1500m /7500m/h
=1/5h or 12minutes.
Answered by
47
perimeter =2(l+b)
=2(180+120)
=2(300)
=600m
this is for one round
for 5 round =5×600
=3000m
time taken =disatance /speed
=3000/7500
=2/5 m/h
=2(180+120)
=2(300)
=600m
this is for one round
for 5 round =5×600
=3000m
time taken =disatance /speed
=3000/7500
=2/5 m/h
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