A mixture contains alcohol and water in the ratio 4 : 3. If 5 litres of water is added to the mixture, the ratio becomes 4 : 5. Find the quantity of alcohol in the given mixture.
The ratio of the cost price of two articles is 4 : 5. If the first article is sold at 10% profit and the second at 20% profit, find the overall profit percentage.
In a partnership, A, B and C invest capitals in the ratio 3 : 4 : 5. If the time periods of their investments are in the ratio 5 : 6 : 7, what is the ratio of their profits?
A and B start a business with ₹15,000 and ₹25,000. After 4 months, A increases his capital by ₹5,000. If total profit at end of year is ₹13,000, find B's share.