Alligation and Mixtures Aptitude Practice Test - Set 01

Practice Test: Question Set - 01


1. How much kg of tea (cost Rs. 160 per kg.) should be mixed with tea (cost Rs. 120 per kg.) to prepare 16 kg to sell at Rs. 2160?
    (A) 8 kg.
    (B) 12 kg.
    (C) 6 kg.
    (D) 4 kg.

2. In 90 liter mixture of wine and water, there is 10% water. How much water should be added so that the percentage of water may raise to 19%
    (A) 12 liters
    (B) 10 liters
    (C) 15 liters
    (D) 8 liters

3. ‘A’ and ‘B’ are two different alloys of gold and silver having the two metals in the ratio 7:2 and 7:1 respectively. If equal quantities of both the alloys are mixed to prepare a third alloy C, then the proportion of gold and silver in ‘C’ is?
    (A) 2 : 5
    (B) 7 : 5
    (C) 5 : 2
    (D) 5 : 7

4. Two vessels ‘A’ and ‘B’ are filled with dilute sulphuric acid (i.e. mixture of sulphuric acid and water), vessel ‘A’ has the ratio of acid and water in 1:2, while the vessel ’B’ has the ratio of acid and water in 3:1. To prepare 5 liter mixture of dilute sulphuric acid containing equal amount of acid and water, what amount of mixtures from both the vessels ‘A’ and ‘B’ should be taken?
    (A) 2 liters and 3 liters
    (B) 3 liters and 2 liters
    (C) 1 liter and 4 liters
    (D) 4 liters and 1 liter

5. A mixture contains 4 parts spirit and 1 part water. 1 kg of water is added to it. The new mixture has spirit and water in the ratio 3:1. Find the weight of spirit (in kg.) in the original mixture?
    (A) 11 kg.
    (B) 13 kg.
    (C) 10 kg.
    (D) 12 kg.

6. In brand ‘A’ the ratio of two types of oils are 4:3. In brand ‘B’ the ratio of these two oils is 2:3. How much kg. of brand ‘A’ should be mixed with 5 kg of brand ‘B’ to gain the ratio of two oils in 5:4 ?
    (A) 24.5 kg.
    (B) 14 kg.
    (C) 98 kg.
    (D) 49 kg.

7. A, B, C and D brands of tea are purchased at Rs. 100, 120, 130 and 160 per kg respectively and mixed in the ratio 4 : 3 : 2 : 1. Find the selling price per kg of the mixed so that 10% of profit can be obtained?
    (A) Rs. 132.80
    (B) Rs. 137.80
    (C) Rs. 126.80
    (D) Rs. 129.80

8. Two alloys of silver and copper contains silver and copper in the ratio 5:1 and 7:2. What quantities of each should mixed to prepare silver being 80% in 5 lbs?
    (A) 1 : 4
    (B) 2 : 3
    (C) 3 : 2
    (D) 4 : 1

9. Two vessels contains spirit and water in the ratio 3:1 and 5:3 respectively. In what ratio these two be mixed to prepare a third mixture containing spirit and water in the ratio 2:1?
    (A) 1 : 2
    (B) 2 : 3
    (C) 1 : 3
    (D) 2 : 1

10. An alloy contains 90% copper and 10% tin. Another alloy has 93% copper and 4% tin. In what ratio these to be mixed so that the mixture must have 9% tin?
    (A) 5 : 1
    (B) 1 : 5
    (C) 2 : 7
    (D) 7 : 2

11. The cost of pure milk is Rs. 12 per liter. Water is added to it and then mixture is sold at Rs. 13.75 per liter and thus 25% of profit is realized. Find the ratio of milk and water in the mixture?
    (A) 12 : 1
    (B) 11 : 2
    (C) 11 : 1
    (D) 12 : 2

12. Gold is 19 times as heavy as water. Copper is 9 times as heavy as water. In what ratio these two to be mixed so that the weight of the mixture be 15 times as heavy as water?
    (A) 2 : 3
    (B) 1 : 5
    (C) 3 : 2
    (D) 5: 1

13. 4 liter wine is withdrawn from a vessel full of wine and again filled with water to fill the vessel. The ratio of wine and water in the vessel now is 36:13. Find the capacity of the vessel?
    (A) 23 liters
    (B) 49 liters
    (C) 28 liters
    (D) None of these

14. A vessel contains 56 liters of mixture of milk in the ratio of 3:5. How much water should be added so that the mixture may contain milk and water in the ratio 7:13?
    (A) 4 liters
    (B) 5 liters
    (C) 6 liters
    (D) 3 liters

15. The weight of 1 liter water is 1 kg and 1 kg. of another liquid in 1.340 kg. The mixed weight of the two liquids is 1.270 kg/liter. The ratio of the two, in 1 liter mixture is
    (A) 7 : 34
    (B) 7 : 27
    (C) 27 : 7
    (D) 27 : 34

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Alligation and Mixtures:
Formula:                Alligation and Mixtures Formulas
Solved Examples:  Solved Examples: Set 01     Solved Examples: Set 02
Practice Test:         Practice Test: 01
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