The average age of a family with 5 members is 28…

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The average age of a family with 5 members is 28. If one of the 5 members of age 20 is excluded the average age of the family becomes –

  1. A. 25
  2. B. 20
  3. C. 30
  4. D. 24

Answer: Option C

Here is complete explanation of The average age of a family with 5 members is 28….

Solution(By ExamCraze Team)

Total age of 5 members = 5 × 28 = 140
And, required average
= $$frac{140 - 20}{4}$$
= $$frac{120}{4}$$
= 30 years

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