A vender bought 9 sweets for 1 rupees . At what rate should he sell it to gain 80% .
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80% gain on rs 1 is 80 paise.
So total selling price must be 1.80 rs for 9 sweets.
So he need to sell 1 piece with price of 1.80/9
That is in order to get 80% profit he can sell one piece of sweet of RS 1.80/9 = 0.20 or 20 paise
So total selling price must be 1.80 rs for 9 sweets.
So he need to sell 1 piece with price of 1.80/9
That is in order to get 80% profit he can sell one piece of sweet of RS 1.80/9 = 0.20 or 20 paise
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