Mixtures and Alligations Aptitude Questions and Answers | MCQ Problems

Mixtures and Alligations Quiz

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Mixtures and Alligations Aptitude Problems – Information

Quiz NameMixtures and Alligations
CategoryAptitude
Number of Questions23
Time30 Minutes
Exam TypeMCQ (Multiple Choice Questions)

Mixtures and Alligations Quiz Online Test – Practise Now

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1. A 20 litre mixture of milk and water contains milk and water in the ratio 3 : 2. 10 litres of the mixture is removed and replaced with pure milk and the operation is repeated once more. At the end of the two removals and replacement, what is the ratio of milk and water in the resultant mixture?

2. In what ratio,water must be mixed with fruit juice costing Rs.24 per litre so that the juice would be worth of Rs.20 per litre?

3. 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?

4. 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?

5. One type of liquid contains 25 % of benzene, the other contains 30% of benzene. A can is filled with 6 parts of the first liquid and 4 parts of the second liquid. Find the percentage of benzene in the new mixture.

6. How many kgs of Basmati rice costing Rs.42/kg should a shopkeeper mix with 25 kgs of ordinary rice costing Rs.24 per kg so that he makes a profit of 25% on selling the mixture at Rs.40/kg?

7. In a mixture the ratio of alcohol to water is 5 : 4. If 5 litres more alcohol is added the ratio becomes 3 : 2. How many litres of alcohol was in the original mixture?

8. A can contains a mixture of two liquids A and B in the ratio 7: 5. When 9 liters of the mixture is drawn off and the can is filled with B, the ratio of A and B becomes 7: 9. How many liters of liquid A was contained by the can initially?

9. A housewife has 11 litre of Solution that contains sodium carbonate Solution and benzene Solution in the ratio 3 : 1. She adds 250 ml of 3 : 2 Solution of sodium carbonate and benzene Solution to it and then uses 250 ml of the combined mixture to make strong organic Solution How much of pure sodium carbonate Solution is she left with?

10. Two containers, A and B have certain quantities of the mixture in them. In container A, three liquids X, Y and Z are mixed in the ratio of 5 : 4 : 3 respectively and in container B two liquids Y and Z are mixed in the ratio of 16 : 15 respectively. Mixtures from both containers A and B are poured into an empty container C. The ratio of the quantities of liquids X, Y and Z in container C becomes 25 : 68 : 60 respectively. Quantity of mixture in container B is how much percent less or more than the quantity of mixture in container A?

11. Two varieties of wheat - A and B costing Rs. 9 per kg and Rs. 15 per kg were mixed in the ratio 3 : 7. If 5 kg of the mixture is sold at 25% profit, find the profit made?

12. How many litres of water should be added to a 30 litre mixture of milk and water containing milk and water in the ratio of 7 : 3 such that the resultant mixture has 40% water in it?

13. An alloy contains a mixture of Zinc, Copper and Iron in the ratio of 4 : 5 : 7. If 24 kg of mixture is taken out and 5 kg of Zinc and 12 kg of Iron is mixed in the alloy. In the resultant mixure quantity of Iron is 26 kg more than Copper, then what is total quantity of initial mixtures?

14. How many litres of a 90% of concentrated acid needs to be mixed with a 75% Solution of concentrated acid to get a 30 liter Solution of 78% concentrated acid?

15. A zookeeper counted the heads of the animals in a zoo and found it to be 80. When he counted the legs of the animals he found it to be 260. If the zoo had either pigeons or horses, how many horses were there in the zoo? In the zoo, each horse had four legs and each pigeon had two legs.

16. The ratio of milk and water in a mixture of 90 liter milk and water is 7 : x. If 15 liter of water is added in the mixture, the ratio of water to milk becomes 1 : x, then find the initial quantity of milk.

17. A container contains 50 litres of milk. From this container, 10 litres of milk was taken out and replaced by water. This process is repeated one more time. How much milk is now left in the container?

18. Spirit and water in two container X and Y are in the ratio 5 : 2 and 7 : 6 respectively. In what ratio these mixtures be mixed to get a new mixture in container Z having water and spirit in the proportion 5 : 8?

19. 30 boys with an average weight of 60 kgs and 20 girls with an average weight of 40.Find the average weight of the whole class? Find the average weight of the whole class?

20. Two solution of 90% and 97% purity and mixed resulting in 21 liters of mixture of 94% purity. How much is the quantity of the first solution in the resulting mixture?

21. 40% of the mixture from vessel A is taken out and sold at the rate of pure milk. Now 30 litres milk is added to the mixture and now the whole mixture is sold at the rate 40% lower than the rate of pure milk. Find the profit percent in this transaction.

22. From a container, 6 liters milk was drawn out and was replaced by water. Again 6 liters of mixture was drawn out and was replaced by the water. Thus the quantity of milk and water in the container after these two operations is 9:16. The quantity of mixture is:

23. For a car there are 5 tyres including one spare tyre(4+1). All tyres are equally used. If the total distance travelled by car is 40000km then what is the average distance travelled by each tyre?


 

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Mixtures and Alligations Questions and Answers

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Mixtures and Alligations Formulas and Tricks

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