Question
A grocer sells rice at a profit of 12% and uses a
weight which is 20% less. Find his total percentage gain.Solution
Suppose he bought at Rs. x /kg Then, he sells at 112x/100 * 100/80 = 7x/5 per kg Now % profit = (7x/5 – x) * 100/x = 40% Alternate Method: Total percentage profit = (% profit + % less in weight) * 100/(100 - % less in weight = (12 + 20)*100/ (100 – 20) = 40%
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