Important questions about Alligation Or Mixture. Alligation Or Mixture MCQ questions with answers. Alligation Or Mixture exam questions and answers for students and interviews.

1. 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:

Options

A : 1 3

B : 2 3

C : 2 5

D : 3 5

2. 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?

Options

A : 1 3

B : 1 4

C : 1 5

D : 1 7

3. In what ratio must water be mixed with milk to gain 16?% on selling the mixture at cost price?

Options

A : 1 : 6

B : 6 : 1

C : 2 : 3

D : 4 : 3

4. 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?

Options

A : 10

B : 20

C : 21

D : 25

5. 8 litres are drawn from a cask full of wine and is then filled with water. This operation is performed three more times. The ratio of the quantity of wine now left in cask to that of water is 16 : 65. How much wine did the cask hold originally?

Options

A : 18 litres

B : 24 litres

C : 32 litres

D : 42 litres

6. In a mixture of 45 liters, the ratio of milk and water is 4:1. How much water must be added to make the mixture ratio 3:2?

Options

A : 72 litres

B : 24lLitres

C : 15 litres

D : 1.5 litres

7. In a class of 30 students , the average weight of boys is 20 kg and the average weight of the girls is 25 kg . The fraction of boys out of the total students of the class is

Options

A : 4/5

B : 5/6

C : 3/4

D : Data insufficient

8. In what ratio should milk and water be mixed so that after selling the mixture at the cost price a profit of 50/3 % is made?

Options

A : 1:2

B : 6:1

C : 2:3

D : 2:5

9. 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?

Options

A : 15 litres

B : 12 litres

C : 9 litres

D : 6 litres

10. In what proportion must tea at Rs. 62 per kg be mixed with tea at Rs. 72 per kg in order to obtain the mixture worth Rs. 65 per kg?

Options

A : 4: 6

B : 7: 3

C : 2: 3

D : 4: 7

1. Find the quantity of rice @ Rs. 10 per kg. which should be mixed with 25 kgs of rice @ Rs. 8 per kg, so that on selling the mixture @ Rs. 15 per kg there is 80% profit.

Options

A : 6 kgs

B : 7 kgs

C : 3 kgs

D : 5 kgs

2. A person has two solutions of sugar with 30% and 50% concentration respectively. In what proportion should he mix two solutions to get 45% concentration in the resulting mixture?

Options

A : 1 : 3

B : 3 : 1

C : 2 : 3

D : 3 : 2

3. A merchant has 160 kgs of wheat. He sells a part of it at 10% profit and the rest of 6% loss. If he incurs 4% loss on the whole, find the quantity for each part.

Options

A : 120 kgs

B : 140 kgs

C : 150 kgs

D : 160 kgs

4. A man bought a certain quantity of sugar for Rs. 8000. He sells one-fourth of it at 20% loss. At what per cent profit should he sell the remainder stock so as to make an overall profit of 20%?

Options

A : 20%

B : 30%

C : 35%

D : 40%

5. A person has Rs. 5000. He invests a part of it at 3% per annum and the remainder at 8% per annum simple interest. His total income in 3 years is Rs. 750. Find the sum invested at different rates of interest.

Options

A : Rs. 2000 and Rs. 3000

B : Rs. 2500 and Rs. 2500

C : Rs. 3000 and Rs. 2000

D : Rs. 2750 and Rs. 2250

6. The average daily wages of staff, consisting of supervisors and labourers, of a company is Rs. 50. The average wages of supervisors is Rs. 150 while that of labourers is Rs. 40 per day. If the number of supervisors is 15, find the number of labourers in the company.

Options

A : 150

B : 175

C : 180

D : 200

7. A sum of Rs. 70 is divided among 10 children. Each boy gets Rs. 10 whereas a girl gets Rs. 5. If the number of boys is 4, find the number of girls.

Options

A : 6

B : 7

C : 8

D : 9

8. A vessel contains 80 litres of milk. 16 litres of milk was taken out of the vessel and replaced by water. Then 16 litres of mixture was withdrawn and again replaced by water. The operation was repeated for third time. How much milk is now left in the vessel?

Options

A : 96.40 litres

B : 50.36 litres

C : 40.96 litres

D : 32.76 litres

9. 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%?

Options

A : 4 : 5

B : 3 : 5

C : 3 : 4

D : 3 : 2

10. A shopkeeper has 100 kgs of tea. He sells a part of it at 20% profit and the rest at 5% loss. If his overall profit is 10%, find the quantity for each part.