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Mensuration (Class - VI)
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QuestionClick to flip
The cost of fencing a rectangular park of length 175 m is Rs. 7200. If the rate of fencing is Rs. 12 per metre, then find the breadth of the park.
AnswerClick to flip back
A
125 m
💡 Explanation:
This is the correct answer. The total cost of fencing is Rs. 7200. The rate of fencing is Rs. 12/m.
Perimeter x rate of fencing = total cost
Perimeter = total cost/rate = 7200/12 = 600 m
Length = 175
Breadth = ?
Perimeter = 600
P = 2(L + B)
600 = 2(175 + b) = 350 + 2b
600 - 350 = 2b
250 = 2b
b = 250/2 = 125 m