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