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प्रश्न
A man sold an article for ₹ 396 and gained 10% on it. Find the cost price of the article
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उत्तर
S.P. of article = ₹ 396
Gain = 10%
Let cost price = ₹ x
∴ S.P. = `("x" xx (100 + 10))/100 = 110/100 "x"`
`therefore 110/100 "x" = 396`
`=> "x" = (396 xx 100)/110 = 360`
Cost price of an article = ₹ 360
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