Andy and Tommy have a total of $204. If Tommy gives Andy $33, Andy will have thrice as much money as Tommy. How much money has each of them at first?
- Tommy
- Andy
|
Andy |
Tommy |
Total |
Before |
3 u - $33 |
1 u + $33 |
$204 |
Change |
+ $33 |
- $33 |
|
After |
3 u |
1 u |
$204 |
(a)
Total amount that Andy and Tommy have in the end
= 1 u + 3 u
= 4 u
4 u = 204
1 u = 204 ÷ 4 = 51
Amount that Tommy has at first
= 1 u + 33
= 51 + 33
= $84
(b)
Amount that Andy has at first
= 204 - 84
= $120
Answer(s): (a) $84; (b) $120