Question

The CP of 21 article is equal to the SP of 18 articles . Find the gain%

Answer 1

ANS: Let the CP of 21 articles be Rs100.

Then the SP of 18 articles is Rs 100.

The CP of one article = 100/21

The SP of one article is 100/18

Profit = (100/18) - (100/21) = 0.79

gain percent = profit*100/CP

=> (0.79*100)/ (100/21)

=>16.59% profit