Question

Find the cost of cultivating the rectangular field of Perimeter 144 m and Breadth is 2400 cm at a cost of Rs. 450 per square metre

Answer 1

WE SHOULD FIND THE AREA.
2(l+b)=144
2(l+24)=144  ,(2400cm=24m)
2l+48=144
      2l=144-48
         =96
        l=96/2
         =48
area  =l*b
         =48*24
         =1152m^2
cost   =1152*450
          = .518400 rupees
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