alleryIf the selling price of 15 articles equals the cost price of 20, the gain percent is
A30%
B33.33%
C20%
D25%
Answer & Solution
Correct answer: B. 33.33%
Let one article cost 1 so cost of 20 is 20; each article sells for 20/15, so gain = (4/3 - 1) = 33.33 percent.
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