Nagma runs around a rectangular park 180 m long and 120 m wide
7.5km/hour. In how much time will she complete 5 rounds ?
Answers
Answered by
2
Answer:
12 mins
Step-by-step explanation:
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 12 minutes.
Answered by
2
P = 2X(L+B)
2X(180+120)
2X300
600M
5 ROUNDS
SO 5X 600= 3000M = 3 KM
SPEED = DISTANCE/TIME
7.5=3T
THEREFORE TIME = 2 HOURS
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