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