There were 30 more pupils in Group R than in Group S. If 13 pupils transferred from Group R to Group S, how many more pupils would be in Group R than in Group S?
| |
Group R |
Group S |
|
| Before |
1 u + 30 |
1 u |
|
| Change |
- 13 |
+ 13 |
|
| After |
1 u + 17 |
1 u + 13 |
|
Number of pupils that Group R had after transferring to Group S
= 1 u + 30 - 13
= 1 u + 17
Number of pupils that Group S had after the transfer
= 1 u + 13
Number of pupils in Group R more than in Group S
= 17 - 13
= 4
Answer(s): 4
