Ivan had $42.20 more than Albert. After Albert had spent
25 of his money, Ivan had $57.60 more than Albert. How much money did Ivan have at first?
| |
Ivan |
Albert |
More |
| Before |
5 u + $42.20 |
5 u |
$42.20 |
| Change |
|
- 2 u |
|
| After |
5 u + $42.20 |
3 u |
2 u + $42.20 |
Ivan had $57.60 more than Albert in the end.
5 u + 42.20 - 3 u = 57.60
2 u + 42.20 = 57.60
2 u = 57.60 - 42.20
2 u = 15.40
1 u = 15.40 ÷ 2 = 7.70
Amount that Ivan had at first
= 5 u + 42.20
= 5 x 7.70 + 42.20
= 38.50 + 42.20
= $80.70
Answer(s): $80.70
