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By selling a book for Rs 258, a bookseller gains 20%. For how much should he sell it to gain 30%? |
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Answer» Given details are, Selling price of book is = Rs 258 The man’s gain percent is = 20% of 100 = 20/100 So, let us consider the cost price of book be Rs x By solving, x + x×20/100 = 258 x + x/5 = 258 (5x+x)/5 = 258 By cross multiplying 6x= 5×258 x = 1290/6 = 215 Now, the cost price of book is = Rs 215 For a gain of 30% the man should sell the book at = 215 + 215×30/100 = 215 + 64.5 = 279.50 ∴ To gain 30% the man should sell the book at Rs 279.50. |
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