Paul and Ahmad had a total of 150 buttons. Ahmad had half as many buttons as Paul. How many buttons must Paul give to Ahmad so they have an equal number of buttons?
| |
Paul |
Ahmad |
Total |
| Before |
2 u |
1 u |
150 |
| Change |
- ? |
+ ? |
|
| After |
1 |
1 |
|
Total number of buttons at first = 3 u
1 u = 150 ÷ 3 = 50
Paul and Ahmad have an equal number of buttons in the end.
Number of buttons that Ahmad has in the end
= 150 ÷ 2
= 75
Number of buttons that Paul must give to Ahmad
= 75 - 50
= 25
Answer(s): 25
