The ratio of Carl's money to Rael's money is 7 : 15. If Rael has $585, how much must he give to Carl so both will have the equal amount of money?
| |
Carl |
Rael |
Total |
| Before |
7 u |
15 u |
22 u |
| Change |
+ 4 u |
- 4 u |
|
| After |
11 u |
11 u |
22 u |
Comparing Carl and
Rael in the end |
1 |
1 |
|
Amount that Rael has at first = 15 u
15 u = 585
1 u = 585 ÷ 15 = 39
Total amount that Rael and Carl have
= 7 u + 15 u
= 22 u
Amount that each of them will have in the end
= 22 u ÷ 2
= 11 u
Amount that Rael must give to Carl
= 11 u - 7 u
= 4 u
= 4 x 39
= $156
Answer(s): $156
