If an article is sold at 9/10th of its usual selling price, 20% profit would be made on it. Find the profit percentage which would have been made on it on selling it at its usual selling price.
A.20%
B.25%
C.33.33%✓ Correct
D.30%
Explanation
Let CP=100. At 9/10 of SP, profit=20%, so 9/10×SP=120, SP=133.33. Profit at usual SP = 133.33–100=33.33, so profit% = 33.33%.
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