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Discussion

  1. The average of the daily income of A, B and C is Rs . 60 . If B earns Rs . 20 more than C and A earns double of what C earns. What is the daily income of C ?
    1. Rs. 70
    2. Rs. 60
    3. Rs. 40
    4. None of these
  1. Correct Option: C

    Let C's earning = Rs. y.
    Then, B's earning = Rs. (y + 20)
    and A's earning = Rs. 2y
    ∵ 2y + y + 20 + y= 3 x 60
    ⇒ 4x = 160
    ∴ x = 40


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