Nigma runs around a rectangular park 180m long and 120m wide at the rate of 7.5 km/hour. In how much time will she complete five rounds?
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Step-by-step explanation:
Perimeter= 2*(L+B)
Perimeter=2*(180+120)
Perimeter=2*300
Perimeter=600
We needs to find the time taken by Nigma to complete 5 rounds.
1 round 600 m
5 round = 5x600 = 3000 m = 3 km
Speed of Nagma is 7.5 km/hour.
Time = Distance Speed
Time = 3 7.5
Time = 0.4
Nagma will complete five rounds in 0.4 hours.
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