Irene had 5 times as many buttons as Abi at first. After Irene gave 30 buttons to Abi, they each had the same number of buttons in the end. How many buttons did Abi have in the end?
| |
Irene |
Abi |
| Before |
5 u |
1 u |
| Change |
- 30 |
+ 30 |
| After |
5 u - 30 |
1 u + 30 |
Comparing Irene and
Abi in the end |
1 |
1 |
The number of buttons that Irene and Abi had in the end is equal.
5 u - 30 = 1 u + 30
5 u - 1 u = 30 + 30
4 u = 60
1 u = 15
Number of buttons that Abi had in the end
= 1 u + 30
= 15 + 30
= 45
Answer(s): 45
