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प्रश्न
If John sells his bicycle for Rs. 637, he will suffer a loss of 9%. For how much should it be sold, if he desires a profit of 5%?
उत्तर
S.P. = Rs. 637, Loss = 9%
∴ C.P. =`(100xx"S.P.")/(100-9)`
`=100/91xx637`
= 100 × 7
= Rs. 700
Profit = 5%
S.P. =`((100+"Profit"))/100xx"C.P."`
S.P. = `((100+5))/100xx700`
= 105 × 7
= 735
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