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प्रश्न
By selling a scooter for Rs. 9,200, a man gains 15%. Find the cost price of the scooter.
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उत्तर
S.P. of the scooter = Rs. 9200
Gain = 15%
∴ C.P. =`("S.P." xx 100)/(100 + "gain"%)`
`= (9200 xx 100)/(100 + 15)`
`= (9200 xx 100)/115` = 8000
the cost price of the scooter is Rs 8000
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