The ratio of Xavier's money to Zane's money is 7 : 15. If Zane has $480, how much must he give to Xavier so both will have the equal amount of money?
| |
Xavier |
Zane |
Total |
| Before |
7 u |
15 u |
22 u |
| Change |
+ 4 u |
- 4 u |
|
| After |
11 u |
11 u |
22 u |
Comparing Xavier and
Zane in the end |
1 |
1 |
|
Amount that Zane has at first = 15 u
15 u = 480
1 u = 480 ÷ 15 = 32
Total amount that Zane and Xavier have
= 7 u + 15 u
= 22 u
Amount that each of them will have in the end
= 22 u ÷ 2
= 11 u
Amount that Zane must give to Xavier
= 11 u - 7 u
= 4 u
= 4 x 32
= $128
Answer(s): $128
