Question

cp of 11 lemons is 10rs and sp of 10 is 11rs. find the gain percent.

Answer 1

CP of 11 oranges=Rs 10
   CP of 1 orange=Rs 10/11

SP of 10 oranges=Rs 11
   SP of 1 orange=Rs 11/10

therefore,gain=11/10-10/11
                       =21/110

gain%=(21/110)/(10/11)*100
          =21%

Answer 2

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