In a training course, the ratio of the number of male members to that of female members is 7:5. If 6 male members and 3 female members quit the course, then the ratio becomes 5:4. (a) Find the original number of female member of female members in the course. (b) Find the total number of members in the course now.
Answers
Answered by
1
answer: let male member :::x
total male members 7x
ratio of male members after quit 5 x
total ratio - ratio after quit
7x-5x=2x (equation 1)
total quit members = 6 (equation 2)
by eq 1 and 2 we can conclud that
2x=6
x=3
so total male =21
similerly find female members
so answer a (15)
answer b (36)
Similar questions