A gold necklace was sold at a profit of rs.9000. the rate of profit was 30%. what was the cost of the necklace???
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Gain% = [(gain / total CP) × 100] %
30 = ₹9000/cp x 100
30 x cp = 9000 x 100
30 x cp = 900000
Cp = 900000/30
Cp = 30000₹
30 = ₹9000/cp x 100
30 x cp = 9000 x 100
30 x cp = 900000
Cp = 900000/30
Cp = 30000₹
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