(12)By selling 8 dozen pencils, a shopkeeper gains the selling price of one dozen pencils. Find his gain percentage
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Let SP of 1 dozen pencils = x.
SP of 8 dozen pencils = 8x.
CP of 8 dozen pencils = (8x - x) = 7x
% gain = x÷7x×100
Answer:
14 2 by 7
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