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Question
The selling price of 15 articles is equal to the cost price of 12 articles. Find the gain or loss as a percent.
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Solution
S.P. of 15 articles = C.P. of 12 articles
Let C.P. of 1 article = Rs.1
C.P. of 12 article = Rs.12
and C.P. of 15 articles = Rs.15
S.P. of 15 articles = Rs.12...[S.P. of 15 articles = C.P. of 12 articles]
Loss = Rs.15 – Rs.12 = Rs.3
Loss% = `3/15xx 100 = 20%`
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