Question

1. In a saree, 25 square blocks of side (x+2) metres each has to be hand painted. Find the total cost of painting the saree at the cost of 500 RS per 100 sq.metres in terms of x.
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Answer 1

Answer:

Side of each square block= (X+2) m

Area = x² + 4x + 4 m

Area of 25 such blocks = 25(x²+4x + 4)

= 25x² + 100x + 100 sq.m

Cost of painting per sq.m = 500/100 = 5Rs/sq.m

Cost of painting 25 blocks of saree = 5(25x² + 100x + 100) Rs

= 125x² + 500x + 500 Rs

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