Ramsukh sells rasgulla at Rs. 15 per kg. A rasgulla is made up of flour and sugar mixed in the ratio 5 : 3. The ratio of price of sugar and flour is 7 : 3. He earns \(66\frac{2}{3}\%\) profit. What is the cost price of sugar?

Ramsukh sells rasgulla at Rs. 15 per kg. A rasgulla is made up of flour and sugar mixed in the ratio 5 : 3. The ratio of price of sugar and flour is 7 : 3. He earns \(66\frac{2}{3}\%\) profit. What is the cost price of sugar?
1). Rs. 10/kg
2). Rs. 9/kg
3). Rs. 18/kg
4). Rs. 14/kg

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