by selling a book for tk 115 20 man loses 10, Profit and Loss, General Mathematics

Question:By selling a book for tk 115.20, a man loses 10%. At what price should he sell it to gain 5%?

Answer Let the new S.P be Tk x

 (100-Loss%) : (1st S.P) = (100 + gain%): (2nd S.P)

 or, `(100-10)/115.20` = `(100+5)/x`

 or, x = `(105 xx 115.20/90)` = 134.40 

 `:.` New S.P = Tk 134.40

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By selling a book for tk 115.20, a man loses 10%. At what price should he sell it to gain 5%?

Question:By selling a book for tk 115.20, a man loses 10%. At what price should he sell it to gain 5%?

Answer Let the new S.P be Tk x (100-Loss%) : (1st S.P) = (100 + gain%): (2nd S.P) or, `(100-10)/115.20` = `(100+5)/x` or, x = `(105 xx 115.20/90)` = 134.40 `:.` New S.P = Tk 134.40