There were 28 more pupils in Group B than in Group C. If 7 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 + 28 |
1 u |
|
| Change |
- 7 |
+ 7 |
|
| After |
1 u + 21 |
1 u + 7 |
|
Number of pupils that Group B had after transferring to Group C
= 1 u + 28 - 7
= 1 u + 21
Number of pupils that Group C had after the transfer
= 1 u + 7
Number of pupils in Group B more than in Group C
= 21 - 7
= 14
Answer(s): 14
