Dylan has
27 as many buttons as Ahmad. They have a total of 252 buttons. How many buttons must Ahmad give to Dylan so that they will have the same number of buttons?
|
Dylan |
Ahmad |
Total |
Before |
2 u |
7 u |
9 u |
Change |
+ ? |
- ? |
|
After |
126 |
126 |
252 |
Total number of buttons
= 2 u + 7 u
= 9 u
9 u = 252
1 u = 252 ÷ 9 = 28
Number of buttons that each of them has in the end
= 252 ÷ 2
= 126
Number of buttons that Dylan has
= 2 u
= 2 x 28
= 56
Number of buttons that Ahmad must give Dylan
= 126 - 56
= 70
Answer(s): 70