Question

the mean age of man and woman combine is 25years . if the mean age of man us 26 years and the women is 21 years . find the percentage of man and woman in the group
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Answer 1

Answer: the percentage of men and women in the group is 80,20 respectively.

Step-by-step explanation:

Let total no. of people in the group be 100 and out of them x are men

i.e no of women = 100−x.

Mean age =

no of people

sum of ages in the group

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Total sum = sum of ages of men + sum of ages of women

⇒100×25=x×26+(100−x)×21

⇒x=80

Hence, the percentage of men and women in the group is 80,20 respectively.

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