On selling an article for Tk. 550, a man gains 10%. What will be the selling price, if desired profit is 20%?

On selling an article for Tk. 550, a man gains 10%. What will be the selling price, if desired profit is 20%? Correct Answer Tk. 600

At 10% gain, If selling price Tk(100 + 10) or 110 cost Tk.110 If selling price Tk.550 cost Tk. = (100 × 550)/110 = Tk.500 At 20% profit, Selling price = 500 + 500 × 20% = 500 + 500 × 20/100 = 600
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