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Question
A fruit seller bought mangoes at Rs. 90 per dozen and sold them at a loss of 8 percent. How much will a customer pay for. (i) one mango (ii) 40 mangoes
Solution
C.P. of 1 dozen or 12 mangoes = Rs. 90
Loss = 8 %
∴ S.P. of 1 dozen or 12 mangoes
`= ("C.P." xx (100 - "loss"%))/100`
= Rs. `(90(100 - 8))/100 = (90 xx 92)/100 = 828/10` = Rs. 82.80
(i) S.P. of 1 mango = `82.80/12` = Rs. 6.90
(ii) S.P. of 40 mangoes = Rs. 6.90 × 40 = Rs. 276
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