There are 5 members in a family. If their ages are in a series with equal gaps, find the age of the eldest person. It is known that the sum of their ages is 120 years, and no one is younger than 20 years and older than 30 years.

There are 5 members in a family. If their ages are in a series with equal gaps, find the age of the eldest person. It is known that the sum of their ages is 120 years, and no one is younger than 20 years and older than 30 years. Correct Answer 28 years

The only possible AP where minimum value is 20 and maximum value is 28 with 5 terms and a common difference 2 is, 20, 22, 24, 26 and 28. Thus, the age of the eldest person is 28 years.
Bissoy MCQ

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