Quantitative Apitude-Alligation or Mixture
Quantitative Apitude-Alligation or Mixture
11. A sum of Rs. 312 was divided among 100 boys and girls in such a way that each boy gets Rs. 3.60 and each girl Rs. 2.40. The number of girls is :
- 40
- 60
- 35
- 65
12. A man covered a distance of 2000 km in 18 hours partly by bus at 72 kmph and partly by train at 160 kmph. The distance covered by bus is :
- 1280 km
- 720 km
- 860 km
- 640 km
13. A sum of Rs. 36.90 is made up of 180 coins which are either 10 paise coins or 25 paise coins. the number of 10 paise coins is :
- 126
- 54
- 120
- 60
14. A dishonest milkman prfesses 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 ;
- 25%
- 20%
- 6 1/4
- 4%
15. A mixture of 20kg of spirit and water contsins 10% water. How much water must added to this mixture to raise the percentage of water to 25% ?
- 4 kg
- 5 kg
- 8 kg
- 30 kg
16. A container contains 40 kg of milk. From this container 4 kg 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 ?
- 27.36 kg
- 29.16 kg
- 28 kg
- 26.34 kg
17. A can contains a mixture of two liquids A and B in the ratio 7 :5. when 9 litres of mixture are drawn of 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 ?
- 25
- 21
- 20
- 10
18. A vessel is filled with liquid, 3 parts of which are water and 5 parts syrup. How much of the mixture must be drawn off and replaced with water so that the mixture may be half water and half syrup?
- 1/3
- 1/4
- 1/5
- 1/7
19. 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:
- Rs. 169.50
- Rs. 170
- Rs. 175.50
- Rs. 180
20. 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?
- 10
- 20
- 21
- 25