5.A rectangular field is 90m by 70m.A man walks around it at the rate of 4 km per hour .what time will he take in making 5 rounds
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Answer:
So his speed = 4 km / hr = 4 km / 60 min = 1 km in 15 min . Hence the person takes 24 min
Step-by-step explanation:
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Answered by
0
Step-by-step explanation:
area of rectangular field = (l×b)
= 90× 70 = 6300
A man walks around it at the rate of 4 km per hour for one round
So his speed = 4 km / hr = 4 km / 60 min = 1 km in 15 min . Hence the person takes 24 min
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