Jenson and Zane have a total of 84 buttons. If Jenson gives Zane 28 buttons, Zane will have 3 times as many buttons as him. Find
(a) Jenson's buttons
(b) Zane's buttons
|
Jenson |
Zane |
Total |
Before |
1 u + 28 |
3 u - 28 |
84 |
Change |
- 28 |
+ 28 |
|
After |
1 u |
3 u |
4 u |
(a)
Total number of buttons
= 1 u + 3 u
= 4 u
4 u = 84
1 u = 84 ÷ 4 = 21
Number of buttons that Jenson has
= 1 u + 28
= 21 + 28
= 49
(b)
Number of buttons that Zane has
= 84 - 49
= 35
Answer(s): (a) 49; (b) 35