At a school, there were 60 children from Club U and 40% less children from Club V. Some children joined Club V and the ratio of the number of children from Club U to the number of children from Club V became 6 : 5. How many children joined Club V?
| |
Club U |
Club V |
| Before |
60 |
36 |
| Change |
|
+ ? |
| After |
6 u |
5 u |
Number of children from Club V at first in percent
= 100% - 40%
= 60%
Number of children from Club V at first
= 60% x 60
=
60100 x 60
= 36
Number of children in Club U remains unchanged.
6 u = 60
1 u = 60 ÷ 6 = 10
Number of children from Club V in the end
= 5 u
= 5 x 10
= 50
Number of children joined Club V
= 50 - 36
= 14
Answer(s): 14
