The average age of 5 members of a family is 30 years. When a member of age 22…
2025
The average age of 5 members of a family is 30 years. When a member of age 22 years leaves the family, then what will be the average age of the family?
Answer: D. 32 years — Average age of 5 members = 30 years Formula Used Average = Sum of observation/Number of observation Calculation Sum of age of 5 members = 30 × 5 = 150 years…
- A.
22 years
- B.
23 years
- C.
35 years
- D.
32 years
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Show answer & explanation
Correct answer: D
Average age of 5 members = 30 years
Formula Used
Average = Sum of observation/Number of observation
Calculation
Sum of age of 5 members = 30 × 5 = 150 years
After leaving member of 22 years, the age of family = 150 - 22 = 128 years
Average age of 4 member in family = 128/4 = 32 years
∴ The required answer is 32 years
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