Hazel and Irene have 220 buttons altogether. Irene has four times as many buttons as Hazel. How many buttons must Irene give to Hazel so that they have the same number of buttons?
|
Hazel |
Irene |
Total |
Before |
1 u |
4 u |
220 |
Change |
+ ? |
- ? |
|
After |
110 |
110 |
220 |
Total number of buttons that Hazel and Irene have
= 1 u + 4 u
= 5 u
5 u = 220
1 u = 220 ÷ 5 = 44
Number of buttons that Hazel and Irene each has in the end
= 220 ÷ 2
= 110
Number of buttons that Irene must give to Hazel
= 110 - 44
= 66
Answer(s): 66