2009 · Q106
Combined mean age 25; men 26, women 21. Percentage of men and women?
general-mental-abilityquantitative-aptitude
- A60, 40
- B80, 20
- C30, 70
- D50, 50
Explanation
25=(26m+21w)/(m+w) gives m:w=4:1, i.e., 80% men, 20% women.
Combined mean age 25; men 26, women 21. Percentage of men and women?
Explanation
25=(26m+21w)/(m+w) gives m:w=4:1, i.e., 80% men, 20% women.