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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

Q11. **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%?**

  1.  3 : 2
  2.  3 : 4
  3.  3 : 5
  4.  4 : 5

Solution : 3 : 2
Q12. **The cost of Type 1 rice is Rs. 15 per kg and Type 2 rice is Rs. 20 per kg. If both Type 1 and Type 2 are mixed in the ratio of 2 : 3, then the price per kg of the mixed variety of rice is:**

  1.  Rs. 18
  2.  Rs. 18.50
  3.  Rs. 19
  4.  Rs. 19.50

Solution : Rs. 18
Q13. **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?**

  1.  18 litres
  2.  24 litres
  3.  32 litres
  4.  42 litres

Solution : 24 litres
Q14. **A merchant has 1000 kg of sugar, part of which he sells at 8% profit and the rest at 18% profit. He gains 14% on the whole. The quantity sold at 18% profit is:**

  1.  400 kg
  2.  560 kg
  3.  600 kg
  4.  640 kg

Solution : 600 kg

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Q15. **A mixture of 150 liters of wine and water contains 20% water. How much more water should be added so that water becomes 25% of the new mixture?**

  1.  7 liters
  2.  15 liters
  3.  10 liters
  4.  9 liters

Solution : 10 liters
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