Question

fencing the compound of a house cost rupees rupees 4930 the rate is rupees 85 per metre find the perimeter of the compound if the breadth is 10 metre find its length

Answer 1

Perimeter=cost/rate=4930/85=58m
perimeter=2 (l+b)
58=2 (l+10)
58=2l+20
58-20=2l
2l=38
l=38/2
length=19metre

Answer 2

perimeter of compound = total cost of fencing / cost for fencing per metre
= 4930/85=58 m
perimeter = 58=2(l+b)
(l+b)= 58/2=29
l+ 10 = 29m
length = 29—10 =19m

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