The ratio of Zeph's money to Lee's money is 9 : 13. If Lee has $104, how much must he give to Zeph so both will have the equal amount of money?
| |
Zeph |
Lee |
Total |
| Before |
9 u |
13 u |
22 u |
| Change |
+ 2 u |
- 2 u |
|
| After |
11 u |
11 u |
22 u |
Comparing Zeph and
Lee in the end |
1 |
1 |
|
Amount that Lee has at first = 13 u
13 u = 104
1 u = 104 ÷ 13 = 8
Total amount that Lee and Zeph have
= 9 u + 13 u
= 22 u
Amount that each of them will have in the end
= 22 u ÷ 2
= 11 u
Amount that Lee must give to Zeph
= 11 u - 9 u
= 2 u
= 2 x 8
= $16
Answer(s): $16
