A shopkeeper wrongly calculates his profit on the selling price of an article and finds it to be 40%. What is his actual profit percentage?
Let Selling price of an article = Rs 100
Profit is calculated on selling price as given in questionÂ
profit =Â $$40\%\ of\ 100$$ =Â $$\frac{40}{100}\times\ 100=40$$
We know,Â
Profit = Selling price - Cost PriceÂ
Cost price = Selling price -Â profit = 100 - 40 = 60
Profit % =Â $$\frac{profit}{\cos t\ price\ }\times\ 100$$
i.e;Â $$\frac{40}{60}\times\ 100=66\frac{2}{3}\%$$
Hence, Option C is correct.Â
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