mixtures-and-alligations

Mixtures and Alligations

Mixtures and Alligations: What is a mixture? Solved Exercises with Answers for Questions on Mixtures and Alligations

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Online Aptitude Questions with Answers on Mixtures and Alligations

Q16. **A vessel contains 20 liters of a mixture of milk and water in the ratio 3:2. 10 liters of the mixture are removed and replaced with an equal quantity of pure milk. If the process is repeated once more, find the ratio of milk and water in the final mixture obtained?**

  1.  9:1
  2.  4:7
  3.  7:1
  4.  2:5

Solution : 9:1
Q17. **In what ratio should two varieties of sugar of Rs.18 per kg and Rs.24 kg be mixed together to get a mixture whose cost is Rs.20 per kg?**

  1.  1:3
  2.  3:1
  3.  1:2
  4.  2:1

Solution : 2:1

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Q18. **How many liters of oil at Rs.40 per liter should be mixed with 240 liters of a second variety of oil at Rs.60 per liter so as to get a mixture whose cost is Rs.52 per liter?**

  1.  120 liters
  2.  180 liters
  3.  110 liters
  4.  160 liters

Solution : 160 liters
Q19. **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?**

  1.  Rs. 13.50
  2.  Rs. 14.50
  3.  Rs. 15.50
  4.  Rs. 16.50
  5.  None of these

Solution : Rs. 16.50

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Q20. **In a mixture of milk and water, the proportion of milk by weight was 80%. If, in a 180 gm mixture, 36 gms of pure milk is added, what would be the percentage of milk in the mixture formed?**

  1.  80%
  2.  100%
  3.  84%
  4.  87.5%
  5.  None of these

Solution : None of these
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