A rectangular field is 72m by 58 m. Amar walks round it at the rate of 3 pm per hour. What time will he take in taking 2 rounds.
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Step-by-step explanation:
perimeter of rectangular field =2(l+b)
= 2(72+58)
=260m
distance of two rounds =2*260
=520m
time taken to walk 1000m =60min
time taken to walk 1m =60/1000
time taken to walk 520m= 60/1000*520
=31.2 min
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