In an office, 80% workers are men while 20% are women. The average age of the men is 30, and the average age of the women is 40. What is the average age of all the workers in that office?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is Option 3 i.e. 32.
Let total workers = 100
Men = 80 and Women = 20
Total age of men = 80 × 30 = 2400
Total age of women = 20 × 40 = 800
Total age = 2400 + 800 = 3200
Average age = 3200/100 = 32