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Mathematics

Mixtures And Allegations MCQs

Practice Mixtures And Allegations MCQs for competitive exams.

Mixtures And Allegations MCQs

Practice questions from this topic.

A drink of chocolate and milk contains 8% pure chocolate by volume. If 10 litres of pure milk are added to 50 litres of this drink, the percentage of chocolate in the new drink is:

  1. A. $$6frac{2}{3}$$
  2. B. $$5frac{2}{3}$$
  3. C. $$5frac{1}{3}$$
  4. D. $$6frac{1}{3}$$
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A and B are solutions of acid and water. The ratios of water and acid in A and B are 4 : 5 and 1 : 2 respectively. If x litres of A is mixed with y litres of B, then ratio of water and acid in the mixture becomes 8 : 13. What is x : y?

  1. A. 5 : 6
  2. B. 2 : 5
  3. C. 3 : 4
  4. D. 2 : 3
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In what ratio should sugar costing Rs. 40 per kg he mixed with sugar costing Rs. 18 per kg. So as to earn a profit of 20% by selling the mixture at Rs. 54 per kg?

  1. A. 3 : 5
  2. B. 4 : 7
  3. C. 5 : 8
  4. D. 2 : 3
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How many kg of salt costing Rs. 28 per kg must be mixed with 39.6 kg of salt costing Rs. 16 per kg, so that selling the mixture at Rs. 29.90, there is a gain of 15%.

  1. A. 198
  2. B. 135
  3. C. 132
  4. D. 131
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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?

  1. A. 1600
  2. B. 9800
  3. C. 6400
  4. D. 12800
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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?

  1. A. 110
  2. B. 55
  3. C. 220
  4. D. 70
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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.

  1. A. 2 L
  2. B. 3 L
  3. C. 4 L
  4. D. 5 L
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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%?

  1. A. 18 litres
  2. B. 14 litres
  3. C. 16 litres
  4. D. 12 litres
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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.

  1. A. 5 : 3
  2. B. 3 : 5
  3. C. 7 : 13
  4. D. 13 : 7
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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?

  1. A. 58.21%
  2. B. 51.24%
  3. C. 54.27%
  4. D. 56.26%
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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?

  1. A. 3
  2. B. 1
  3. C. 2
  4. D. 4
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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?

  1. A. 80%
  2. B. 100%
  3. C. 50%
  4. D. 60%
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