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Home Aptitude Alligation or Mixture See What Others Are Saying!
  • Question
  • A container of 90 liters with two liquids A and B, 60% of liquid A and 30% of liquid B are taken out of the vessel. This leaves the container 40% empty. Find the initial quantity of both liquids.


  • Options
  • A. 50 litres
  • B. 54 litres
  • C. 57 litres
  • D. 60 litres

  • Correct Answer
  • 60 litres 

    Explanation

    Here withdrawal of liquid A and B result into making the container empty. Hence percentage of two liquids withdrawn are two components of the percentage by which the container becomes empty.
    Applying the rule of alligation, we get
    A : B = 10 : 20 or 1 : 2
    Quantity of liquid = 1 (1 + 2) × 90 = 30
    liters Quantity of liquid B = 90 ? 30 = 60 liters.


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      ?. x 2 ? 6x = 7
      ?. 2y 2 + 13y + 15 = 0

    • Options
    • A. 1
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    • C. 3
    • D. 4
    • Discuss
    • 2. 
      If U = {a, b, c, d, e, f}, A = {a, b, c}, find (U ? A)?.

    • Options
    • A. U
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    • C. ?
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    • 3. 
      Mukul's income is 10% more than Sunil's. How much less is Sunil's income than that of Mukul's?

    • Options
    • A. 8.09 %
    • B. 9.09 %
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    • D. 7.90 %
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    • 4. 3, 7, 15, 39, 63, 127, 255, 511

    • Options
    • A. 7
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    • D. 63
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    • 5. 19, 26, 33, 46, 59, 74, 91

    • Options
    • A. 26
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    • C. 46
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    • 6. If the number 481 * 673 is completely divisible by 9, then the smallest whole number in place of * will be:

    • Options
    • A. 2
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    • Options
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    • 8. 
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