The average of the ages of a husband and his wife was 25 years at the time of their wedding. after 7 years they have a 2 years old child. What is the average age of the family at present?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 22 years.
Given:
The average of the ages of a husband and his wife was 25 years at the time of their wedding
After 7 years they have a 2 years old child
Formula used:
Average = Sum of observation/number of observation ----- (1)
Calculations:
Sum of the ages of husband and his wife = 25 × 2 = 50 years
After 7 years sum of the age of the whole family = 50 + 14 + 2 = 66
Total family members = 2 + 1 = 3
Required average = 66/3 = 22 years