The average age of 8 persons in a committee is increased by 2 years :

The average age of 8 persons in a committee is increased by 2 years when two men whose ages are 35 years and 45 years are replaced by two The average age of two women is (in years)

  1. 40
  2. 42
  3. 48
  4. 45
Anurag Mishra Professor Asked on 23rd January 2016 in Maths.
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  • 1 Answer(s)

    Answer:  (3) 48 

    Explanation:-
    The average age of 8 persons in a committee is increased by 2 years.
    Then, total age increased due to substitution = 8 x 2 = 16 years

    The age of removed persons = 35 + 45
     = 80 years

    Then, average age of new two women = (80 + 16)/2
     = 96/2
     = 48 years

    Hence, the correct answer is option (3) 48. 

    Anurag Mishra Professor Answered on 23rd January 2016.
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