Mr Oh had $886 more than Mr Lin at first. After Mr Lin had spent $446, Mr Oh had 3 times as much money as Mr Lin. Find the amount of money Mr Lin had at first.
| |
Mr Lin |
Mr Oh
|
| Comparing Mr Lin and Mr Oh at first |
|
$886 more |
| Before |
1 u + $446 |
3 u |
| Change |
- $446 |
|
| After |
1 u |
3 u |
After
Amount that Mr Lin has = 1 u
Amount that Mr Oh has = 3 x 1 u = 3 u
Before
Amount that Mr Lin has = 1 u + 446
Amount that Mr Oh has = 3 u
Mr Oh had $886 more than Mr Lin at first.
If another $886 is given to Mr Lin at first, both will have the same amount at first.
3 u = 1 u + 446 + 886
3 u = 1 u + 1332
3 u - 1 u = 1332
2 u = 1332
1 u = 1332 ÷ 2 = 666
Amount that Mr Lin had at first
= 1 u + 446
= 666 + 446
= $1112
Answer(s): $1112
