Quantitative Apitude-Alligation or Mixture
Quantitative Apitude-Alligation or Mixture
21. 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?
- 4 litres, 8 litres
- 6 litres, 6 litres
- 5 litres, 7 litres
- 7 litres, 5 litres
22. 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 : 7
- 5 : 7
- 7 : 3
- 7 : 5
23. A dishonest milkman professes to sell his milk at cost price but he mixes it with water and thereby gains 25%. The percentage of water in the mixture is:
- 4%
- 6%
- 20%
- 25%
24. 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?
- 36 kg
- 42 kg
- 54 kg
- 63 kg
25. A container contains 40 litres of milk. From this container 4 litres of milk was taken out and replaced by water. This process was repeated further two times. How much milk is now contained by the container?
- 26.34 litres
- 27.36 litres
- 28 litres
- 29.l6 litres
26. A jar full of whisky contains 40% alcohol. A part of this whisky is replaced by another containing 19% alcohol and now the percentage of alcohol was found to be 26%. The quantity of whisky replaced is:
- 1/3
- 2/3
- 2/5
- 3/5
27. In what ratio must water be mixed with milk to gain 16% on selling the mixture at cost price?
- 1 : 6
- 6 : 1
- 2 : 3
- 4 : 3
28. Find the ratio in which rice at Rs. 7.20 a kg be mixed with rice at Rs. 5.70 a kg to produce a mixture worth Rs. 6.30 a kg.
- 1 : 3
- 2 : 3
- 3 : 4
- 4 : 5
29. In what ratio must a grocer mix two varieties of tea worth Rs. 60 a kg and Rs. 65 a kg so that by selling the mixture at Rs. 68.20 a kg he may gain 10%?
- 3 : 2
- 3 : 4
- 3 : 5
- 4 : 5
30. The cost of Type 1 rice is Rs. 15 per kg and Type 2 rice is Rs. 20 per kg. If both Type 1 and Type 2 are mixed in the ratio of 2 : 3, then the price per kg of the mixed variety of rice is:
- Rs. 18
- Rs.18.50
- Rs. 19
- Rs. 19.50