Question 118
By selling an article for Z 450, a man loses 10%. The gain or loss per cent if he sells it for 540 is
Solution
S.P = 450
Loss % = 10%
Let C.P. = $$x$$
=> $$\frac{x-450}{x}$$ * 100 = 10
=> $$9x = 4500 => x = 500$$
Now, C.P. = 500 and S.P. = 540
=> Profit % = $$\frac{540-500}{500}$$ * 100 = 8%
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