The ratio of Xavier's money to Harry's money is 7 : 15. If Harry has $660, how much must he give to Xavier so both will have the equal amount of money?
| |
Xavier |
Harry |
Total |
| Before |
7 u |
15 u |
22 u |
| Change |
+ 4 u |
- 4 u |
|
| After |
11 u |
11 u |
22 u |
Comparing Xavier and
Harry in the end |
1 |
1 |
|
Amount that Harry has at first = 15 u
15 u = 660
1 u = 660 ÷ 15 = 44
Total amount that Harry 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 Harry must give to Xavier
= 11 u - 7 u
= 4 u
= 4 x 44
= $176
Answer(s): $176
