What would be the cost of fencing a square field of side 10 m at the rate of ₹ 20 per metre?
A
₹ 800
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B
₹ 700
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C
₹ 600
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D
₹ 500
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Solution
The correct option is A ₹ 800 Perimeter of the square field = 4 × side = 4 × 10 = 40 m Cost of fencing the field = Cost per unit length x Perimeter of the square field = 20 × 40 = ₹ 800