The ratio of Sean's money to Luke's money is 5 : 9. If Luke has $153, how much must he give to Sean so both will have the equal amount of money?
| |
Sean |
Luke |
Total |
| Before |
5 u |
9 u |
14 u |
| Change |
+ 2 u |
- 2 u |
|
| After |
7 u |
7 u |
14 u |
Comparing Sean and
Luke in the end |
1 |
1 |
|
Amount that Luke has at first = 9 u
9 u = 153
1 u = 153 ÷ 9 = 17
Total amount that Luke and Sean have
= 5 u + 9 u
= 14 u
Amount that each of them will have in the end
= 14 u ÷ 2
= 7 u
Amount that Luke must give to Sean
= 7 u - 5 u
= 2 u
= 2 x 17
= $34
Answer(s): $34
