The cost of cultivating a rectangular field at Rs 35 per square metre is Rs 71400. . the width of the field is 40 m find its length. also, find the cost of fencing the field at Rs 50 per meter .
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area of the field=71400÷35=2040sqm
lenth=2040÷40=51
perimeter=2×(51+40)=182
cost=182×50=9100
lenth=2040÷40=51
perimeter=2×(51+40)=182
cost=182×50=9100
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