Mr Sim had $682 more than Mr Zhang at first. After Mr Zhang had spent $386, Mr Sim had 4 times as much money as Mr Zhang. Find the amount of money Mr Sim had at first.
| |
Mr Zhang |
Mr Sim |
Comparing Mr Zhang
and Mr Sim at first |
|
$682 more |
| Before |
1 u + $386 |
4 u |
| Change |
- $386 |
|
| After |
1 u |
4 u |
Mr Sim had $682 more than Mr Zhang at first. If another $682 is given to Mr Zhang at first, both will have the same amount at first.
4 u = 1 u + 386 + 682
4 u = 1 u + 1068
4 u - 1 u = 1068
3 u = 1068
1 u = 1068 ÷ 3 = 356
Amount that Mr Sim had at first
= 4 u
= 4 x 356
= $1424
Answer(s): $1424
