There were 30 more pupils in Group W than in Group X. If 7 pupils transferred from Group W to Group X, how many more pupils would be in Group W than in Group X?
| |
Group W |
Group X |
|
| Before |
1 u + 30 |
1 u |
|
| Change |
- 7 |
+ 7 |
|
| After |
1 u + 23 |
1 u + 7 |
|
Number of pupils that Group W had after transferring to Group X
= 1 u + 30 - 7
= 1 u + 23
Number of pupils that Group X had after the transfer
= 1 u + 7
Number of pupils in Group W more than in Group X
= 23 - 7
= 16
Answer(s): 16
