Carl had 10 times as much money as Rael. After Carl had spent half of his money, he had $20 more than Rael. How much money did Carl have at first?
| |
Carl |
Rael |
| Before |
10 u |
1 u |
| Change |
- 5 u |
|
| After |
5 u |
1 u |
Amount that Carl had after he spent half of his money
= 10 u ÷ 2
= 5 u
Amount that Carl had more than Rael in the end
= 5 u - 1 u
= 4 u
4 u = 20
1 u = 20 ÷ 4 = 5
Amount that Carl had at first
= 10 u
= 10 x 20
= $200
Answer(s): $200
