At a school, there were 24 children from Club P and 25% more children from Club Q. Some children from Club Q left and the ratio of the number of children from Club P to the number of children from Club Q became 6 : 5. How many children from Club Q left?
| |
Club P |
Club Q |
| Before |
24 |
30 |
| Change |
|
- ? |
| After |
6 u |
5 u |
Number of children from Club Q at first in percent
= 100% + 25%
= 125%
Number of children from Club Q at first
= 125% x 24
=
125100 x 24
= 30
Number of children in Club P remains unchanged.
6 u = 24
1 u = 24 ÷ 6 = 4
Number of children from Club Q in the end
= 5 u
= 5 x 4
= 20
Number of children from Club Q who left
= 30 - 20
= 10
Answer(s): 10
