There were 29 more pupils in Group M than in Group N. If 10 pupils transferred from Group M to Group N, how many more pupils would be in Group M than in Group N?
| |
Group M |
Group N |
|
| Before |
1 u + 29 |
1 u |
|
| Change |
- 10 |
+ 10 |
|
| After |
1 u + 19 |
1 u + 10 |
|
Number of pupils that Group M had after transferring to Group N
= 1 u + 29 - 10
= 1 u + 19
Number of pupils that Group N had after the transfer
= 1 u + 10
Number of pupils in Group M more than in Group N
= 19 - 10
= 9
Answer(s): 9
