Mr Cheong had $928 more than Mr Zhang at first. After Mr Zhang had spent $428, Mr Cheong had 3 times as much money as Mr Zhang. Find the amount of money Mr Cheong had at first.
| |
Mr Zhang |
Mr Cheong |
Comparing Mr Zhang
and Mr Cheong at first |
|
$928 more |
| Before |
1 u + $428 |
3 u |
| Change |
- $428 |
|
| After |
1 u |
3 u |
Mr Cheong had $928 more than Mr Zhang at first. If another $928 is given to Mr Zhang at first, both will have the same amount at first.
3 u = 1 u + 428 + 928
3 u = 1 u + 1356
3 u - 1 u = 1356
2 u = 1356
1 u = 1356 ÷ 2 = 678
Amount that Mr Cheong had at first
= 3 u
= 3 x 678
= $2034
Answer(s): $2034
