the area of a rectangular field Is 12 5/8 m find its length.​

1 thought on “the area of a rectangular field Is 12 5/8 m find its length.​”

1. hint

   Given area of field = 3584m

   2

   length = 64 m

   We know area – length × breadth = l×b

   b=

   64

   3584

   =56m

   Now Perimeter of field = 2[l+b]

   =2[64+56]

   Perimeters of field = 2[120]= 240 m.

   for 5 rounds perimeter = 240×5=1200m

   Given speed of boy = 6 km/h = 6×

   18

   5

   =

   3

   5

   m/sec

   then time taken to cover 1200 m distance =

   5

   1200

   ×3

   Time = 240×3sec

   or Time =

   60

   240×3

   min=12min

   ∴ 12 min required to complete 5 rounds of field.

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