Question
A man sold an article for 20% profit. If the cost price
of the article was 'y%' less, then he would've earned 50% profit by selling the article at the same price. Find the value of 'y'.Solution
Let the initial cost price of the article be Rs. '100x'
So, selling price of the article = 100x X 1.2 = Rs. '120x'
So, new cost price of the article = 120x ÷ 1.5 = Rs. '80x'
So, y = {(120x - 100x) /100x} X 100 = 20%
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