At a school, there were 48 children from Club V and 25% more children from Club W. Some children from Club W left and the ratio of the number of children from Club V to the number of children from Club W became 6 : 5. How many children from Club W left?
| |
Club V |
Club W |
| Before |
48 |
60 |
| Change |
|
- ? |
| After |
6 u |
5 u |
Number of children from Club W at first in percent
= 100% + 25%
= 125%
Number of children from Club W at first
= 125% x 48
=
125100 x 48
= 60
Number of children in Club V remains unchanged.
6 u = 48
1 u = 48 ÷ 6 = 8
Number of children from Club W in the end
= 5 u
= 5 x 8
= 40
Number of children from Club W who left
= 60 - 40
= 20
Answer(s): 20
