Liam and Flynn had a total of 72 buttons. Flynn had half as many buttons as Liam. How many buttons must Liam give to Flynn so they have an equal number of buttons?
|
Liam |
Flynn |
Total |
Before |
2 u |
1 u |
72 |
Change |
- ? |
+ ? |
|
After |
1 |
1 |
|
Total number of buttons at first = 3 u
1 u = 72 ÷ 3 = 24
Liam and Flynn have an equal number of buttons in the end.
Number of buttons that Flynn has in the end
= 72 ÷ 2
= 36
Number of buttons that Liam must give to Flynn
= 36 - 24
= 12
Answer(s): 12