Question

A shopkeeper sells an artical at a loss of 25/2%.had he sold it for rs.51.80 more, he would have earned a profit of 6%.the cost price of the article is
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Answer 1

Let the cost price be x

so the gain is 15x/100

selling price = cost price +gain

=x+15x/100

=115x/100

If he sells for Rs 18 more than he will gain 18%

If he gain 18% the selling price will be 118x/100

so

115x/100+18=118x/100

118x/100-115x/100=18

3x=1800

x=600

so the cost price of article is Rs 600

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