Mr Toh had $881 more than Mr Lin at first. After Mr Lin had spent $466, Mr Toh had 4 times as much money as Mr Lin. Find the amount of money Mr Lin had at first.
| |
Mr Lin |
Mr Toh
|
| Comparing Mr Lin and Mr Toh at first |
|
$881 more |
| Before |
1 u + $466 |
4 u |
| Change |
- $466 |
|
| After |
1 u |
4 u |
After
Amount that Mr Lin has = 1 u
Amount that Mr Toh has = 4 x 1 u = 4 u
Before
Amount that Mr Lin has = 1 u + 466
Amount that Mr Toh has = 4 u
Mr Toh had $881 more than Mr Lin at first.
If another $881 is given to Mr Lin at first, both will have the same amount at first.
4 u = 1 u + 466 + 881
4 u = 1 u + 1347
4 u - 1 u = 1347
3 u = 1347
1 u = 1347 ÷ 3 = 449
Amount that Mr Lin had at first
= 1 u + 466
= 449 + 466
= $915
Answer(s): $915
