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Discussion

  1. Five years ago, the average age of four men was 48 yr. Now, a new man joins and the average age increases by 2 yr. What is the age of the new man?
    1. 36 yr
    2. 42 yr
    3. 41 yr
    4. 38 yr
  1. Correct Option: D

    Sum of the ages of 4 men five years ago
    = 48 x 4
    =192 yr

    And sum of present ages of the four men
    = 192 + 5 x 4
    = 212 yr

    Now ( 212 + Age of the new man ) / 5 = 50
    ∴ Age of the new man = 50 x 5 - 212
    = 38 yr.

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