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  • Question
  • The ratio of petrol and kerosene in the container is 3:2 when 10 liters of the mixture is taken out and is replaced by the kerosene, the ratio become 2:3. Then total quantity of the mixture in the container is:


  • Options
  • A. 25
  • B. 30
  • C. 45
  • D. cannot be determined

  • Correct Answer
  • 30 

    Explanation

    pool : kerosene 

       3  :  2(initially) 

       2  :  3(after replacement)

     

      R e m a i n i n g   Q u a n t i t y I n i t i a l   Q u a n t i t y = 1 - R e p l a c e d   Q u a n t i t y T o t a l   Q u a n t i t y

     

    (for petrol)    2 3 = 1 - 10 k

     => K = 30

     Therefore the total quantity of the mixture in the container is 30 liters.


  • Alligation or Mixture problems


    Search Results


    • 1. The diluted wine contains only 8 liters of wine and the rest is water. A new mixture whose concentration is 30%, is to be formed by replacing wine. How many liters of mixture shall be replaced with pure wine if there was initially 32 liters of water in the mixture ?

    • Options
    • A. 4
    • B. 5
    • C. 8
    • D. None of these
    • Discuss
    • 2. 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

    • Options
    • A. Rs. 19.50
    • B. Rs. 19
    • C. Rs. 18
    • D. Rs. 18.50
    • Discuss
    • 3. How many kilograms of sugar costing Rs. 9 per kg must be mixed with 27 kg of sugar costing Rs. 7 per Kg so that there may be a gain of 10 % by selling the mixture at Rs. 9.24 per Kg ?

    • Options
    • A. 36 Kg
    • B. 42 Kg
    • C. 54 Kg
    • D. 63 Kg
    • Discuss
    • 4. 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?

    • Options
    • A. 10 liters
    • B. 20 liters
    • C. 30 liters
    • D. 40 liters
    • Discuss
    • 5. The ratio of expenditure and savings is 3 : 2 . If the income increases by 15% and the savings increases by 6% , then by how much percent should his expenditure increases?

    • Options
    • A. 25
    • B. 21
    • C. 12
    • D. 24
    • Discuss
    • 6. A container contains 40 litres of milk.From this container 4 litres of milk was taken out and replaced by water. This process was repeated further two times. How much milk is now contained by the container.

    • Options
    • A. 26.34 litres
    • B. 27.36 litres
    • C. 28 litres
    • D. 29.16 litres
    • Discuss
    • 7. A milk man sells the milk at the cost price but he mixes the water in it and thus he gains 9.09%. The quantity of water in the mixture of 1 liter is :

    • Options
    • A. 83.33 ml
    • B. 90.90 ml
    • C. 99.09 ml
    • D. can't be determined
    • Discuss
    • 8. The average weight of boys in a class is 30 kg and the average weight of girls in the same class is 20kg. If the average weight of the whole class is 23.25 kg, what could be the possible strength of boys and girls respectively in the same class?

    • Options
    • A. 14 and 16
    • B. 13 and 27
    • C. 17 and 27
    • D. None of these
    • Discuss
    • 9. Find the ratio in which rice at Rs. 7.20 a kg be mixed with rice at Rs. 5.70 a kg to produce a mixture worth Rs. 6.30 a kg.

    • Options
    • A. 1:3
    • B. 2:3
    • C. 3:4
    • D. 4:5
    • Discuss
    • 10. The ratio of water and alcohol in two different containers is 2:3 and 4:5. In what ratio we are required to mix the mixtures of two containers in order to get the new mixture in which the ratio of alcohol and water be 7:5?

    • Options
    • A. 7:3
    • B. 5:3
    • C. 8:5
    • D. 2:7
    • Discuss


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