The ratio of Vincent's money to Charlie's money is 11 : 15. If Charlie has $120, how much must he give to Vincent so both will have the equal amount of money?
| |
Vincent |
Charlie |
Total |
| Before |
11 u |
15 u |
26 u |
| Change |
+ 2 u |
- 2 u |
|
| After |
13 u |
13 u |
26 u |
Comparing Vincent and
Charlie in the end |
1 |
1 |
|
Amount that Charlie has at first = 15 u
15 u = 120
1 u = 120 ÷ 15 = 8
Total amount that Charlie and Vincent have
= 11 u + 15 u
= 26 u
Amount that each of them will have in the end
= 26 u ÷ 2
= 13 u
Amount that Charlie must give to Vincent
= 13 u - 11 u
= 2 u
= 2 x 8
= $16
Answer(s): $16
