Question: In what proportion must water be added to spirit to gain 20% by selling it at the cost price?

• 1. 2:5
• 2. 1:5
• 3. 3:5
• 4. 4:5

Question: How much water must be added to a bucket which contains 40 liters of milk at the cost price of Rs.3.50 per liter so that the cost of milk reduces to Rs.2 per liter?

• 1. 25 liters
• 2. 28 litres
• 3. 30 liters
• 4. 35 liters

Question: Milk and water in two vessels A and B are in the ratio 4:3 and 2:3 respectively in what ratio the liquids in both the vessels should be mixed to obtain a new mixture in vessel C containing half milk and half water?

• 1. 1:1
• 2. 1:3
• 3. 1:2
• 4. 7:5