The average age of a family consisting both the parents along with the

1.	The average age of a family consisting both the parents along with their 3 sons is 30 years. If age of the second son is 12 years. What was the average age of the family just before the birth of second son?1. 32 years2. 33 years3. 34 years4. 35 years5. 36 years
Answer» Correct Answer - Option 3 : 34 years Given: Average age of 5 members of the family is 30 years and second son is 12 years old at present. Concept: This is an age related question and can be solved just by simple calculations. Calculation: Total age of the family at present = 5 × 30 = 150 years When second son was born, number of members in the family = 3 [since the youngest son was not born at that time] And, 12 years ago their sum of ages = (150 – 4 × 12) = 102 years Their average age at that time = 102/3 = 34 years Students often makes mistakenly takes number of family members as 4 when calculating. Beware of that mistake.

The average age of a family consisting both the parents along with their 3 sons is 30 years. If age of the second son is 12 years. What was the average age of the family just before the birth of second son?1. 32 years2. 33 years3. 34 years4. 35 years5. 36 years

Answer» Correct Answer - Option 3 : 34 years

Given:

Average age of 5 members of the family is 30 years and second son is 12 years old at present.

Concept:

This is an age related question and can be solved just by simple calculations.

Calculation:

Total age of the family at present = 5 × 30 = 150 years

When second son was born, number of members in the family = 3 [since the youngest son was not born at that time]

And, 12 years ago their sum of ages = (150 – 4 × 12) = 102 years

Their average age at that time = 102/3 = 34 years

Students often makes mistakenly takes number of family members as 4 when calculating. Beware of that mistake.

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