A Store keepekeeper sells a book at 15%gain had he sold it for 18 more he would have gained 18% find the cost price of the book
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Let cost price = 100%
book sold on 15% profit means total selling is on 115%. if 18 rs more then he would gain 18% means 118%.
means 115% + 18 = 118%
118% - 115% = 18 and 3% = 18
if 3% = 18 then 100% = (18/3)×100 = 600
cost price is 600rs
book sold on 15% profit means total selling is on 115%. if 18 rs more then he would gain 18% means 118%.
means 115% + 18 = 118%
118% - 115% = 18 and 3% = 18
if 3% = 18 then 100% = (18/3)×100 = 600
cost price is 600rs
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