1. How many kilogram of sugar costing Rs. 9 per kg must be mixed with 27 kg of sugar costing Rs. 7 per kg so that there may be a gain of 10% by selling the mixture at Rs. 9.24 per kg? (4)
- 1. 36 kg
- 2. 42 kg
- 3. 54 kg
- 4. 63 kg
2. Tea worth Rs. 126 per kg and Rs. 135 per kg are mixed with a third variety in the ratio 1 : 1 : 2. If the mixture is worth Rs. 153 per kg, the price of the third variety per kg will be: (3)
- 1. Rs. 169.50
- 2. Rs. 170
- 3. Rs. 175.50
- 4. Rs. 180
3. A can contains a mixture of two liquids A and B is the ratio 7 : 5. When 9 litres of mixture are drawn off and the can is filled with B, the ratio of A and B becomes 7 : 9. How many litres of liquid A was contained by the can initially? (3)
- 1. 10
- 2. 20
- 3. 21
- 4. 25
4. A milk vendor has 2 cans of milk. The first contains 25% water and the rest milk. The second contains 50% water. How much milk should he mix from each of the containers so as to get 12 litres of milk such that the ratio of water to milk is 3 : 5? (2)
- 1. 4 litres, 8 litres
- 2. 6 litres, 6 litres
- 3. 5 litres, 7 litres
- 4. 7 litres, 5 litres
5. In what ratio must a grocer mix two varieties of pulses costing Rs. 15 and Rs. 20 per kg respectively so as to get a mixture worth Rs. 16.50 kg? (3)
- 1. 3 : 7
- 2. 5 : 7
- 3. 7 : 3
- 4. 7 : 5