At a school, there were 60 students from Club A and 40% more students from Club B. Some students from Club B left and the ratio of the number of students from Club A to the number of students from Club B became 5 : 3. How many students from Club B left?
| |
Club A |
Club B |
| Before |
60 |
84 |
| Change |
|
- ? |
| After |
5 u |
3 u |
Number of students from Club B at first in percent
= 100% + 40%
= 140%
Number of students from Club B at first
= 140% x 60
=
140100 x 60
= 84
Number of students in Club A remains unchanged.
5 u = 60
1 u = 60 ÷ 5 = 12
Number of students from Club B in the end
= 3 u
= 3 x 12
= 36
Number of students from Club B who left
= 84 - 36
= 48
Answer(s): 48
