Question

the mean age of a combined group of men and women is 25yrs.if the mean age of the group of men is 26 and that of the group of women is 21,then the percentage of men and women in the group is?

Answer 1

Answer:

men 80% and women 20%

Step-by-step explanation:

let the no. of men be =x and women be =y

then from given question we can say

26x+21y/(x+y) = 25

26x+21y= 25x+25y

x=4y

so percentage of men will be x*100/(x+y) = 80

and percentage of women will be y*100/(x+y) = 20