There were 30 more children in Group Y than in Group Z. If 10 children transferred from Group Y to Group Z, how many more children would be in Group Y than in Group Z?
|
Group Y |
Group Z |
|
Before |
1 u + 30 |
1 u |
|
Change |
- 10 |
+ 10 |
|
After |
1 u + 20 |
1 u + 10 |
|
Number of children that Group Y had after transferring to Group Z
= 1 u + 30 - 10
= 1 u + 20
Number of children that Group Z had after the transfer
= 1 u + 10
Number of children in Group Y more than in Group Z
= 20 - 10
= 10
Answer(s): 10