There were 27 more pupils in Group B than in Group C. If 12 pupils transferred from Group B to Group C, how many more pupils would be in Group B than in Group C?
| |
Group B |
Group C |
|
| Before |
1 u + 27 |
1 u |
|
| Change |
- 12 |
+ 12 |
|
| After |
1 u + 15 |
1 u + 12 |
|
Number of pupils that Group B had after transferring to Group C
= 1 u + 27 - 12
= 1 u + 15
Number of pupils that Group C had after the transfer
= 1 u + 12
Number of pupils in Group B more than in Group C
= 15 - 12
= 3
Answer(s): 3
