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      Question

      The average age of a group of 15 students is 32 years.

      Two persons of age 48 years and 32 years, left the group and 2 persons of age 54 years and 101 years, joined the group. Find the new average age of the group.
      A 37 years Correct Answer Incorrect Answer
      B 31 years Correct Answer Incorrect Answer
      C 38 years Correct Answer Incorrect Answer
      D 40 years Correct Answer Incorrect Answer

      Solution

      Required average = {(15 ├Ч 32) тАУ 48 тАУ 32 + 54 + 101}/15 = 37 years

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