mr.singh bought 6pens at Rs.8.50 each and another 8pens at Rs 9.20 each.find the average price of a pen.
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Step-by-step explanation:
Let say cost of 1 pen=x
cost of 8 pen=8x
selling price of 6 pen=8x
selling price of 1 pen=34x
% profit=x34x−x×100=3100=33.33%.
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