MIXTURE and ALLIGATION Practice Questions: Level 02

Q.1. In what ratio must two kinds of sugar at Rs. 1.15 and Rs. 1.24 per kg be mixed so that by selling at Rs. 1.50 per kg, 25% may be gained?
1. 4: 5
2. 5: 4
3. 1: 1
4. 2: 3
5. None of these
Q.2. How much water be mixed in 36 litre of milk worth Rs. 5.00 per litre, so that value of mixture is Rs. 3.60 per litre?
1. 10 litres
2. 12 litres
3. 11 litres
4. 14 litres
5. 17 litres
Q.3. How many kg of Sugar at 50 P per kg must a man mix with 25 kg of sugar at 34P per kg so that by selling the mixture at 44P per kg he gains 10% on the outlay?
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1. 10 kg
2. 15 kg
3. 20 kg
4. 16 kg
5. 18 kg
Q.4. How much sugar at Rs. 9.5 a kg should be added to 17 kg of tea at Rs. 20 a kg so that the mixture be worth Rs. 13 a kg.?
1. 11 kg
2. 17 kg
3. 21 kg
4. 34 kg
5. None of these
Q.5. A hospital uses a mixture of salt and water at Rs. 7.62/litre. This mixture contains 5 % salt. Another mixture containing 75 % water costs Rs. 7.82/litre. How much does the patient pay if he buys 5 litres of mixture containing 18% salt?
1. Rs. 83.75
2. Rs. 73.85
3. Rs. 37.85
4. Rs. 38.75
5. None of these
Q.6. How many kg of custard powder costing Rs. 42 per kg must be mixed with 16 kg of custard powder costing Rs. 60 per kg so that 20 % may be gained by selling the mixture at Rs. 60 per kg?
1. 11 kg
2. 14 kg
3. 12 kg
4. 20 kg
5. None of these
Q.7. A vessel is full of mixture of spirit and water in which there is 20 per cent of spirit. 5 litres are drawn off and the vessel is filled up with water. If the spirit is now 12 %, find the total quantity in the vessel (in ltrs).
1. 72
2. 12.5
3. 60
4. 7.2
5. None of these
Q8. How much chicory at Rs. 5 a kg should be added to 20 kg of coffee at Rs. 12 a kg so that the mixture be worth Rs. 7.50 a kg.?
1. 21 kg
2. 15 kg
3. 36 kg
4. 42 kg
5. None of these
Q9. An alloy of copper and nickel contains 65 % copper. A second alloy contains copper and nickel in the ratio 17 : 3. In what ratio should the two alloys be mixed so that the new mixture contains 4 times as much copper as nickel?
1. 4 : 5
2. 5 : 4
3. 1 : 3
4. 2 : 3
5. None of these
Q10. Five litres of wine is removed from a cask full of wine and is replaced with water. Five litres of this mixture is then removed and replaced with water. If the ratio of wine to water in the cask is now 16 : 9, how much wine did the cask hold ?
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1. 25 litres
2. 50 litres
3. 100 litres
4. 150 litres
5. 175 litres