A rectangular field is 90m long by 70m. a man walks around it at the rate of 4kmph. what time will he take in making 5 rounds.
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24 min will be the answer
vipinmamgai40:
how?
first convert 4kmph into m/min by multiplying 4 with 50/3
then find total distance covered in 5 rounds
by formula 5*2*(90+70)
then divide distance by time
you will get the answer
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