Alligation - Aptitude MCQ Questions and Solutions with Explanations Page-9 section-1

81.
Wheat worth Rs. 80 per kg and Rs. 50 per kg is mixed with a third variety in the ratio 1 : 2 : 3. If the mixture is worth Rs. 75 per kg, then the price of the third variety per kg will be equal to:

A. Rs. 95

B. Rs. 85

C. Rs. 80

D. Rs. 90

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82.
A container contains 25 litre of milk. From this container, 5 litre of milk is taken out and replaced by water. This process is further repeated two times. How much milk is there in the container now?

A. 11.5 litre

B. 14.8 litre

C. 13.5 litre

D. 12.8 litre

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83.
A container has 20% milk and 80% water in it. It is mixed with another sample (inequal quantity) having 80% milk and 20% water. What would be the milk content in the final mixture?

A. 80%

B. 100%

C. 50%

D. 60%

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84.
A jar contains a blend of a fruit juice and water in the ratio 5 : x. When 1 litre of water is added to 4 litres of the blend the ratio of fruit juice to water becomes 1 : 1. What is the value of x?

A. 3

B. 1

C. 2

D. 4

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85.
The ratio of milk to water in a 100 litres mixture is 2 : 3. 10 litres of this mixture is withdrawn and replaced with milk. This process is repeated 2 more times. What is the percentage of milk in final mixture?

A. 58.21%

B. 51.24%

C. 54.27%

D. 56.26%

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86.
If X beakers of 100 ml containing 1 : 4 acid-water solution are mixed with Y beakers of 200 ml containing 3 : 17 acid-water solution then the ratio of acid to water in the resulting mixture becomes 19 : 91. Find X : Y.

A. 5 : 3

B. 3 : 5

C. 7 : 13

D. 13 : 7

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87.
A mixture of milk and water measures 60 litres. It contains 10% water. How much water should be added to it, so that the water may be 25%?

A. 18 litres

B. 14 litres

C. 16 litres

D. 12 litres

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88.
A container contains 20 L mixture in which there is 10% sulphuric acid. Find the quantity of sulphuric acid to be added in it to make the solution of contain 25% sulphuric acid.

A. 2 L

B. 3 L

C. 4 L

D. 5 L

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89.
A mixture is composed of 11 parts of pure milk and 2 parts of water. If 35 litres of water were added to the mixture then the new mixture will contain twice as much pure milk as water, then how many litres of pure milk does the original mixture contain?

A. 110

B. 55

C. 220

D. 70

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90.
An alloy is made by mixing metal A costing Rs. 2000 per kg and metal B costing Rs. 400 per kg in the ratio A : B = 3 : 1. What is the cost (in Rs.) of 8 kg of this alloy?

A. 1600

B. 9800

C. 6400

D. 12800

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Alligation - Aptitude MCQ Questions and Solutions with Explanations

81. Wheat worth Rs. 80 per kg and Rs. 50 per kg is mixed with a third variety in the ratio 1 : 2 : 3. If the mixture is worth Rs. 75 per kg, then the price of the third variety per kg will be equal to:

Answer & Solution

82. A container contains 25 litre of milk. From this container, 5 litre of milk is taken out and replaced by water. This process is further repeated two times. How much milk is there in the container now?

Answer & Solution

83. A container has 20% milk and 80% water in it. It is mixed with another sample (inequal quantity) having 80% milk and 20% water. What would be the milk content in the final mixture?

Answer & Solution

84. A jar contains a blend of a fruit juice and water in the ratio 5 : x. When 1 litre of water is added to 4 litres of the blend the ratio of fruit juice to water becomes 1 : 1. What is the value of x?

Answer & Solution

85. The ratio of milk to water in a 100 litres mixture is 2 : 3. 10 litres of this mixture is withdrawn and replaced with milk. This process is repeated 2 more times. What is the percentage of milk in final mixture?

Answer & Solution

86. If X beakers of 100 ml containing 1 : 4 acid-water solution are mixed with Y beakers of 200 ml containing 3 : 17 acid-water solution then the ratio of acid to water in the resulting mixture becomes 19 : 91. Find X : Y.

Answer & Solution

87. A mixture of milk and water measures 60 litres. It contains 10% water. How much water should be added to it, so that the water may be 25%?

Answer & Solution

88. A container contains 20 L mixture in which there is 10% sulphuric acid. Find the quantity of sulphuric acid to be added in it to make the solution of contain 25% sulphuric acid.

Answer & Solution

89. A mixture is composed of 11 parts of pure milk and 2 parts of water. If 35 litres of water were added to the mixture then the new mixture will contain twice as much pure milk as water, then how many litres of pure milk does the original mixture contain?

Answer & Solution

90. An alloy is made by mixing metal A costing Rs. 2000 per kg and metal B costing Rs. 400 per kg in the ratio A : B = 3 : 1. What is the cost (in Rs.) of 8 kg of this alloy?

Answer & Solution

81.
Wheat worth Rs. 80 per kg and Rs. 50 per kg is mixed with a third variety in the ratio 1 : 2 : 3. If the mixture is worth Rs. 75 per kg, then the price of the third variety per kg will be equal to:

82.
A container contains 25 litre of milk. From this container, 5 litre of milk is taken out and replaced by water. This process is further repeated two times. How much milk is there in the container now?

83.
A container has 20% milk and 80% water in it. It is mixed with another sample (inequal quantity) having 80% milk and 20% water. What would be the milk content in the final mixture?

84.
A jar contains a blend of a fruit juice and water in the ratio 5 : x. When 1 litre of water is added to 4 litres of the blend the ratio of fruit juice to water becomes 1 : 1. What is the value of x?

85.
The ratio of milk to water in a 100 litres mixture is 2 : 3. 10 litres of this mixture is withdrawn and replaced with milk. This process is repeated 2 more times. What is the percentage of milk in final mixture?

86.
If X beakers of 100 ml containing 1 : 4 acid-water solution are mixed with Y beakers of 200 ml containing 3 : 17 acid-water solution then the ratio of acid to water in the resulting mixture becomes 19 : 91. Find X : Y.

87.
A mixture of milk and water measures 60 litres. It contains 10% water. How much water should be added to it, so that the water may be 25%?

88.
A container contains 20 L mixture in which there is 10% sulphuric acid. Find the quantity of sulphuric acid to be added in it to make the solution of contain 25% sulphuric acid.

89.
A mixture is composed of 11 parts of pure milk and 2 parts of water. If 35 litres of water were added to the mixture then the new mixture will contain twice as much pure milk as water, then how many litres of pure milk does the original mixture contain?

90.
An alloy is made by mixing metal A costing Rs. 2000 per kg and metal B costing Rs. 400 per kg in the ratio A : B = 3 : 1. What is the cost (in Rs.) of 8 kg of this alloy?