Mr Tang had $816 more than Mr Choo at first. After Mr Choo had spent $357, Mr Tang had 4 times as much money as Mr Choo. Find the amount of money Mr Tang had at first.
| |
Mr Choo |
Mr Tang |
Comparing Mr Choo
and Mr Tang at first |
|
$816 more |
| Before |
1 u + $357 |
4 u |
| Change |
- $357 |
|
| After |
1 u |
4 u |
Mr Tang had $816 more than Mr Choo at first. If another $816 is given to Mr Choo at first, both will have the same amount at first.
4 u = 1 u + 357 + 816
4 u = 1 u + 1173
4 u - 1 u = 1173
3 u = 1173
1 u = 1173 ÷ 3 = 391
Amount that Mr Tang had at first
= 4 u
= 4 x 391
= $1564
Answer(s): $1564
