Mr Choy had $628 more than Mr Peh at first. After Mr Peh had spent $480, Mr Choy had 3 times as much money as Mr Peh. Find the amount of money Mr Choy had at first.
| |
Mr Peh |
Mr Choy |
Comparing Mr Peh
and Mr Choy at first |
|
$628 more |
| Before |
1 u + $480 |
3 u |
| Change |
- $480 |
|
| After |
1 u |
3 u |
Mr Choy had $628 more than Mr Peh at first. If another $628 is given to Mr Peh at first, both will have the same amount at first.
3 u = 1 u + 480 + 628
3 u = 1 u + 1108
3 u - 1 u = 1108
2 u = 1108
1 u = 1108 ÷ 2 = 554
Amount that Mr Choy had at first
= 3 u
= 3 x 554
= $1662
Answer(s): $1662
