Practice Test Discussion

Q)

Three year ago, the average age of A and B was 18 yr. When C join them, the average becomes 22 yr. How old (in years) is C now?

[United India Insurance Corporation (AAO), 2008]

    • Explanation

    Given,

    Total present ages of A and B = 18×2+6= 42 yr

    Now, Total ages of A,B and C=3×22

       =66 yr

    C's age =66-42

       = 24 yr

    Hence, Option A is correct.

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