if it costs $ 1600 to fence a rectangular park of length 20m at the rate of $25 per m^2, find the breadth of the park and it's perimeter also, find the area of the field.
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Costs 25Rs for each m2
For 1600Rs , area will be 160025=64m
If length is 20m, then
breadth = Area/length=64/20=16/5m=3.2m
Perimeter = 2(length + breadth) = 2(20+3.2)=46.4m
Step-by-step explanation:
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