At a school, there were 40 students from Club H and 25% more students from Club J. Some students from Club J left and the ratio of the number of students from Club H to the number of students from Club J became 5 : 3. How many students from Club J left?
| |
Club H |
Club J |
| Before |
40 |
50 |
| Change |
|
- ? |
| After |
5 u |
3 u |
Number of students from Club J at first in percent
= 100% + 25%
= 125%
Number of students from Club J at first
= 125% x 40
=
125100 x 40
= 50
Number of students in Club H remains unchanged.
5 u = 40
1 u = 40 ÷ 5 = 8
Number of students from Club J in the end
= 3 u
= 3 x 8
= 24
Number of students from Club J who left
= 50 - 24
= 26
Answer(s): 26
