There were 20 more children in Group W than in Group X. If 9 children transferred from Group W to Group X, how many more children would be in Group W than in Group X?
| |
Group W |
Group X |
|
| Before |
1 u + 20 |
1 u |
|
| Change |
- 9 |
+ 9 |
|
| After |
1 u + 11 |
1 u + 9 |
|
Number of children that Group W had after transferring to Group X
= 1 u + 20 - 9
= 1 u + 11
Number of children that Group X had after the transfer
= 1 u + 9
Number of children in Group W more than in Group X
= 11 - 9
= 2
Answer(s): 2
