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Question
A man wants to fence his square garden of side 15 m with a wire. Find the amount he has to spend if the wire costs ₹ 12/m.
A man wants to fence his square garden of side 15 m with a wire. Find the amount he has to spend if the wire costs ₹ 12/m.
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Solution
The correct option is B ₹720
Length of wire needed to fence the square garden
= Perimeter of the square garden
Perimeter of a square of side 'a' = '4a'
Hence, perimeter of the square garden = 4×15 = 60 m
The total amount he will have to spend = Total length of wire needed x cost of 1 metre of wire
= 60×12 = ₹ 720
Length of wire needed to fence the square garden
= Perimeter of the square garden
Perimeter of a square of side 'a' = '4a'
Hence, perimeter of the square garden = 4×15 = 60 m
The total amount he will have to spend = Total length of wire needed x cost of 1 metre of wire
= 60×12 = ₹ 720
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