There were 29 more pupils in Group X than in Group Y. If 8 pupils transferred from Group X to Group Y, how many more pupils would be in Group X than in Group Y?
| |
Group X |
Group Y |
|
| Before |
1 u + 29 |
1 u |
|
| Change |
- 8 |
+ 8 |
|
| After |
1 u + 21 |
1 u + 8 |
|
Number of pupils that Group X had after transferring to Group Y
= 1 u + 29 - 8
= 1 u + 21
Number of pupils that Group Y had after the transfer
= 1 u + 8
Number of pupils in Group X more than in Group Y
= 21 - 8
= 13
Answer(s): 13
