The ratio of land to water for the whole earth is 1 : 2 and in the Northern Hemisphere, it is 2 : 3. What is the ratio of land to water in the Southern Hemisphere?
A mixture of 40 litres of milk and water contains milk and water in the ratio 3 : 1. How much water must be added to this mixture so that the ratio of milk and water becomes 2 : 1?
A, B and C enter into a partnership. A invests ₹2,000 for 5 months, B invests ₹1,200 for 6 months and C invests ₹2,500 for 3 months. If the total profit is ₹5,010, what is B's share?