Mr Lim had $793 more than Mr Chen at first. After Mr Chen had spent $397, Mr Lim had 3 times as much money as Mr Chen. Find the amount of money Mr Chen had at first.
|
Mr Chen |
Mr Lim
|
Comparing Mr Chen and Mr Lim at first |
|
$793 more |
Before |
1 u + $397 |
3 u |
Change |
- $397 |
|
After |
1 u |
3 u |
After
Amount that Mr Chen has = 1 u
Amount that Mr Lim has = 3 x 1 u = 3 u
Before
Amount that Mr Chen has = 1 u + 397
Amount that Mr Lim has = 3 u
Mr Lim had $793 more than Mr Chen at first.
If another $793 is given to Mr Chen at first, both will have the same amount at first.
3 u = 1 u + 397 + 793
3 u = 1 u + 1190
3 u - 1 u = 1190
2 u = 1190
1 u = 1190 ÷ 2 = 595
Amount that Mr Chen had at first
= 1 u + 397
= 595 + 397
= $992
Answer(s): $992