Archie and Julian have a total of $360. If Julian gives Archie $21, Archie will have four times as much money as Julian. How much money has each of them at first?
- Julian
- Archie
|
Archie |
Julian |
Total |
Before |
4 u - $21 |
1 u + $21 |
$360 |
Change |
+ $21 |
- $21 |
|
After |
4 u |
1 u |
$360 |
(a)
Total amount that Archie and Julian have in the end
= 1 u + 4 u
= 5 u
5 u = 360
1 u = 360 ÷ 5 = 72
Amount that Julian has at first
= 1 u + 21
= 72 + 21
= $93
(b)
Amount that Archie has at first
= 360 - 93
= $267
Answer(s): (a) $93; (b) $267