Wesley had
38 the number of buttons that Dylan had at first. After Dylan gave Wesley 68 of his buttons, Wesley had
45 the number of buttons that Dylan had. How many buttons did Wesley have at first?
|
Wesley |
Dylan |
Total |
Before |
3x9 = 27 u |
8x9 = 72 u |
11x9 = 99 u |
Change |
+ 17 u |
- 17 u |
|
After |
4x11 = 44 u |
5x11 = 55 u |
9x11 = 99 u |
The total number of buttons that Wesley and Dylan had at first and in the end remains unchanged. Make the total number of buttons the same. LCM of 11 and 9 is 99.
Number of buttons that Dylan gave Wesley
= 44 u - 27 u
= 17 u
17 u = 68
1 u = 68 ÷ 17 = 4
Number of buttons that Wesley had at first
= 27 u
= 27 x 4
= 108
Answer(s): 108