A rectangular field is 72 m by 58 m amar walks around it at the rate of 3 km per hour what time will he take in taking two rounds
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Perimeter of rectangular field
=2 (l+b)
=2 × (72m+58m)
=2×130m
=260m
Total distance travelled
= 2 × 260m
= 520m
Time taken
= Distance ÷ Speed
= 520m ÷3 km/hr (or ) 50m /min
=1 minute 2 seconds
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