A trader makes a profit equal to the selling price of 75 articles when he sold 100 of the articles. What % profit did he make in the transaction?
It is given that profit on 100 articles = SP of 75 articles
100(SP-CP) = 75*SP
4(SP-CP) = 3SP
SP = 4CP
Profit = $$\ \frac{\ SP-CP}{CP}\times\ 100$$
=$$\ \frac{\ 4CP-CP}{CP}\times\ 100$$
=300%
C is the correct answer.
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