Ben and Perry have a total of $360. If Perry gives Ben $48, Ben will have thrice as much money as Perry. How much money has each of them at first?
- Perry
- Ben
|
Ben |
Perry |
Total |
Before |
3 u - $48 |
1 u + $48 |
$360 |
Change |
+ $48 |
- $48 |
|
After |
3 u |
1 u |
$360 |
(a)
Total amount that Ben and Perry have in the end
= 1 u + 3 u
= 4 u
4 u = 360
1 u = 360 ÷ 4 = 90
Amount that Perry has at first
= 1 u + 48
= 90 + 48
= $138
(b)
Amount that Ben has at first
= 360 - 138
= $222
Answer(s): (a) $138; (b) $222