Harry and Ethan have a total of $129. If Ethan gives Harry $18, Harry will have twice as much money as Ethan. How much money has each of them at first?
- Ethan
- Harry
|
Harry |
Ethan |
Total |
Before |
2 u - $18 |
1 u + $18 |
$129 |
Change |
+ $18 |
- $18 |
|
After |
2 u |
1 u |
$129 |
(a)
Total amount that Harry and Ethan have in the end
= 1 u + 2 u
= 3 u
3 u = 129
1 u = 129 ÷ 3 = 43
Amount that Ethan has at first
= 1 u + 18
= 43 + 18
= $61
(b)
Amount that Harry has at first
= 129 - 61
= $68
Answer(s): (a) $61; (b) $68