Luke had 4 times as much money as Justin. After Luke had spent half of his money, he had $20 more than Justin. How much money did Luke have at first?
| |
Luke |
Justin |
| Before |
4 u |
1 u |
| Change |
- 2 u |
|
| After |
2 u |
1 u |
Amount that Luke had after he spent half of his money
= 4 u ÷ 2
= 2 u
Amount that Luke had more than Justin in the end
= 2 u - 1 u
= 1 u
1 u = 20
Amount that Luke had at first
= 4 u
= 4 x 20
= $80
Answer(s): $80
