Question

the cost of cementing a square Courtyard at 2.75 rupees per square metre is rupees 1100 find the cost of fencing it 5.50 rupees per metre

Answer 1

area of square be a ^2
area × cost = 1100rs
a^2 * 2.75 = 1100
a^2 = 400. area
a = √400
a = 20 cm. length if square

cost of fencing = area × 5.50
400 × 5.50
cost = 2200 rs

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