IPM Question Paper 2020 | IPM Rohtak Quantitative Aptitude

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Question 15 : The average age of a group of 9 friends is 22 years. LAVGIR is the youngest and his age is 6 years, then what happened to be the average age of the family just before LAVGIR was born?

1. 18
2. 7
3. 20
4. 24

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Video Explanation

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Explanatory Answer

The average age of the 9 friends are 22 years.
The total age of the group of friends = 9 × 22 = 198 Years
Since lavgir's age is 6 years.
The total age before he was born = 198 - (9 × 6) = 198 - 54 = 144

The average of the 8 friends = \\frac{144}{8}) = 18 Years.

The question is " The average age of a group of 9 friends is 22 years. LAVGIR is the youngest and his age is 6 years, then what happened to be the average age of the family just before LAVGIR was born? "

Hence, the answer is 18

Choice A is the correct answer.