The mean age of a combined group of men and women is 25 yrs. If the mean age of the group…
Mathematics · JEE Main · NTA Exams — Statistics and Probability
The mean age of a combined group of men and women is 25 yrs. If the mean age of the group of men is 26 and that of the group of women is 21, then the ratio of men and women in the group is
- 1 : 4
- 4 : 1
- 3 : 1
- 1 : 3
Answer
(B) 4 : 1
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