a rectangular field is 72m by 58m. Amar walks round it at rate of 3 km per hour . what time will he take in taking 2 round ?
Answers
Answered by
312
Dimensions of a rectangular field= 72cm y 58cm
perimeter of the rectangular field= 2( l+b )
=2×( 72+58)
= 2×130
= 260cm
∴ Distance taken by Amar in taking two rounds= 2×260m
= 520m
Speed of Amar= 3km/hr
=3×1000/3000 m/sec
= 5/6 m/sec
Total time taken by Amar to cover the distance= Distance/speed
= 520/5/6 = 520×5/6
= 104×6
= 104×6/60 min.
= 10.4 min.
Hope this helps you!!
perimeter of the rectangular field= 2( l+b )
=2×( 72+58)
= 2×130
= 260cm
∴ Distance taken by Amar in taking two rounds= 2×260m
= 520m
Speed of Amar= 3km/hr
=3×1000/3000 m/sec
= 5/6 m/sec
Total time taken by Amar to cover the distance= Distance/speed
= 520/5/6 = 520×5/6
= 104×6
= 104×6/60 min.
= 10.4 min.
Hope this helps you!!
Answered by
56
Answer:
10 min 24 déc c'est bien pour
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