The ratio of Luis's money to Fred's money is 3 : 13. If Fred has $598, how much must he give to Luis so both will have the equal amount of money?
| |
Luis |
Fred |
Total |
| Before |
3 u |
13 u |
16 u |
| Change |
+ 5 u |
- 5 u |
|
| After |
8 u |
8 u |
16 u |
Comparing Luis and
Fred in the end |
1 |
1 |
|
Amount that Fred has at first = 13 u
13 u = 598
1 u = 598 ÷ 13 = 46
Total amount that Fred and Luis have
= 3 u + 13 u
= 16 u
Amount that each of them will have in the end
= 16 u ÷ 2
= 8 u
Amount that Fred must give to Luis
= 8 u - 3 u
= 5 u
= 5 x 46
= $230
Answer(s): $230
