• 1. 
    The ratio of bronze and silver In an alloy is 5 : 2. If 1.50 kg of silver is mixed in 21 kg of alloy, then find the new ratio of bronze and silver in the alloy.

  • 1 : 2
  • 2 : 1
  • 3 : 1
  • 4 : 1
  • 2. 
    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 liters of A is mixed with y liters of B, then the ratio of water and acid in the mixture becomes 8 : 13 What is x : y?

  • 5 : 6
  • 3 : 4
  • 2 : 3
  • 2 : 5
  • 3. 
    A shopkeeper wants to mix two varieties of tea at a cost of Rs. 50 per kg and Rs. 90 per kg to get the mixture worth Rs. 75. In what ratio should he mix both varieties.

  • 3 : 5
  • 5 : 2
  • 4 : 3
  • 2 : 7
  • 4. 
    Sugar worth rupee 40 rupees per kg and 50 rupees per kg mixed with a third variety in the ratio 1 : 2 : 4. If mixture is worth 70 rupee per kg then what is the price of third variety of sugar per kg?

  • 70
  • 87.5
  • 77.5
  • 81
  • 5. 
    A bottle of capacity 80 litres contains alcohol and spirit in the ratio 7 ∶ 3. How much spirit must be added to the mixture, so that the ratio of alcohol and spirit become 2 ∶ 1?

  • 1 litres
  • 2 litres
  • 3 litres
  • 4 litres
  • 6. 
    A vessel has 30 litres of mixture water and milk. The second vessel has 20 litres of mixed milk and water are in ratio 3 : 2 respectively. How much milk present in the first vessel if the water present in the first vessel is 50% more than the milk present in the second vessel?

  • 15
  • 19
  • 12
  • 18
  • 7. 
    A mixture of 80 liters of wine and water contains 60 percent wine. How much water must be added to make it 50 percent wine in the new mixture?

  • 18 liters
  • 12 liters
  • 20 liters
  • 16 liters
  • 8. 
    15 liters of a mixture contains alcohol and water in the ratio of 1 : 4. If 3 liters of water is mixed in it, the percentage of alcohol in the new mixture will be:

  • 17%
  • 16.66%
  • 15%
  • \(18 \frac{1}{2}\%\)
  • 9. 
    In a mixture of 70 kg of rice and wheat, 40% of mixture is wheat, what quantity of wheat must be added to the mixture so that concentration of rice becomes 30% in the mixture?

  • 45 kg
  • 60 kg
  • 80 kg
  • 70 kg
  • 10. 
    A mixture of 70 liters of wine and water contain 10% water. How much more water should be added to the mixture to make 37% water in the resulting mixture?

  • 27 litres
  • 18.9 litres
  • 30 litres
  • 63 liters
  • 11. 
    The ratio of syrup and water in a mixture of 40 liters is 5 : 3, then what amount of water is added, so that the ratio of the mixture becomes 5 : 6?

  • 10 liters
  • 15 liters
  • 12 liters
  • 25 liters
  • 12. 
    Sugar of Rs. 100/kg and Rs. 120/kg are mixed in the ratio of 2 : 3. Find the price of mixture per kg

  • Rs. 110
  • Rs. 112
  • Rs. 100
  • Rs. 140
  • 13. 
    If a person buys 8 litres of oil but a dishonest shopkeeper mixed low-quality oil with high-quality oil in the ratio 3 ∶ 5. The price of high-quality oil is Rs.60/litre and that of low quality is Rs.20/litre, then what is the profit% of the shopkeeper if he charged the price of high-quality oil?

  • 33.33%
  • 66.66%
  • 25%
  • 75%
  • 14. 
    There is 65% alcohol in 40 liter mixture of alcohol and water. Find the quantity of water in the mixture?

  • 14 liter
  • 15 liter
  • 16 liter
  • 12 liter
  • 15. 
    Alloys A and B contain copper and zinc in the ratio 1: 3 and 3 : 5, respectively. In what ratio A and B be mixed to get a new alloy containing copper and zinc in the ratio 1 : 2?

  • 3 : 4
  • 2 : 1
  • 1 : 2
  • 4 : 5
  • 16. 
    The ratio of alcohol and water in a solution of 70 liters is 5 ∶ 2. How much water should be added to the solution to reverse the ratio?

  • 120 liters
  • 105 liters
  • 115 liters
  • 130 liters
  • 17. 
    Alloy A contains iron and copper in ratio 4 : 5. Alloy B contains iron and copper in ratio 3 : 4. If 45 kg of alloy A and 63 kg of alloy B are mixed, then what is the final ratio of copper and iron?

  • 61 : 47
  • 57 : 41
  • 59 : 45
  • 64 : 47
  • 18. 
    Two alloys A and B contain copper and zinc in the ratio 7 : 2 and 5 : 3 respectively. How many kg of A and B must be melted in order to get an alloy of 44 kg containing copper and Zinc in the ratio 3 : 1?

  • 24 kg, 20 kg
  • 30 kg, 14 kg
  • 28 kg, 16 kg
  • 36 kg, 8 kg
  • 19. 
    Ratio of milk and water in two mixtures A and B is 3 : 2 and 4 : 3 respectively. If A and B are mixed in the ratio of 1 : 2, then what is the ratio of milk and water in final mixture?

  • 57 : 41
  • 61 : 44
  • 51 : 46
  • 63 : 46
  • 20. 
    The ratio of the milk and water in the mixture is 8 ∶ 3. The quantity of the mixture is 88 litre. If 44 litres of the mixture is taken out then what is the quantity of the milk left in the mixture?

  • 24 litres
  • 22 litres
  • 32 litres
  • 33 litres
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