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Q. There would be 10% loss if rice is sold at Rs. 5.40 per kg. At what price per kg should it be sold to earn a profit of 20% ?
Let C.P. per kg be Rs. x then, x - 10% of x = 5.40 ⇒ x = 6 ∴ Required S.P. = Rs. [6 + 20% of 6] = Rs. 7.20
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