1.

7. If the S.P. of 16 books is equal to the C.P. of 17 books, find the gain % earned by book dealer.

Answer»

let the S.P = rs1so, sp=cpsp of 16 = 17rs as we know that, when do is greater there is profitPROFIT = selling price - cost price = 17-16=1 is profitgain%=gain/cp*100 1/16*1001/6.2gain %=6.2%



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