The ratio of Cole's money to Rael's money is 7 : 11. If Rael has $539, how much must he give to Cole so both will have the equal amount of money?
| |
Cole |
Rael |
Total |
| Before |
7 u |
11 u |
18 u |
| Change |
+ 2 u |
- 2 u |
|
| After |
9 u |
9 u |
18 u |
Comparing Cole and
Rael in the end |
1 |
1 |
|
Amount that Rael has at first = 11 u
11 u = 539
1 u = 539 ÷ 11 = 49
Total amount that Rael and Cole have
= 7 u + 11 u
= 18 u
Amount that each of them will have in the end
= 18 u ÷ 2
= 9 u
Amount that Rael must give to Cole
= 9 u - 7 u
= 2 u
= 2 x 49
= $98
Answer(s): $98
