Maths - Ratio Proportion Questions Answers

1. A box contains a dozen bulbs in which few are defective and remaining are good. Which of the following cannot be a ratio of defective bulbs to good bulbs?

  • Option : D
  • Explanation : (D) If the ratio is 1 : 4, Then the number of defective bulbs = x and number of good bulbs = 4x
    ∴ x + 4x = 12
    ⇒ 5x = 12
    which is not possible for any integral value of x.
    So, 1 : 4 is not possible.
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2. If(3a + 5b) : (3a - 5b) = 5 : 1, then the value of a : b will be

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3. The production of company X is 120% of the production of company Y and 80% of the production of company Z. The respective ratio between the production of companies X, Y and Z is

  • Option : D
  • Explanation : (D) Let the production of Y =100
    Then, production of X =120
    Production of Z =150
    Required ratio of X, Y and X
    =X : Y : Z
    =120 : 100 : 150
    =12 : 10 : 15
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Maths - Ratio Proportion Objective Type Questions

Maths - Ratio Proportion MCQ

Maths - Ratio Proportion MCQ Questions

 
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