the length and breadth of a rectangular field are in the ratio 3:2 of the perimeter of the field is 250m find the cost of reaping the field at 15 per 50m2
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Step-by-step explanation:
l = 3x.
b = 2x
2(l+b)= 250m
l+b = 250/2
l + b = 125
3x +2x = 125
5x = 125
x = 25
l = 3x = 25 ×3= 75 m
b = 2x = 2×25 = 50 m
area = l × b
= 75×50
= 3750m^2
cost for 50m^2 = ₹15
cost for 1m^2 = 15/50
cost for 3750 = 15/50×3750
= ₹ 1125
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