The ratio of Wesley's money to Archie's money is 7 : 15. If Archie has $300, how much must he give to Wesley so both will have the equal amount of money?
|
Wesley |
Archie |
Total |
Before |
7 u |
15 u |
22 u |
Change |
+ 4 u |
- 4 u |
|
After |
11 u |
11 u |
22 u |
Comparing Wesley and Archie in the end |
1 |
1 |
|
Amount that Archie has at first = 15 u
15 u = 300
1 u = 300 ÷ 15 = 20
Total amount that Archie and Wesley have
= 7 u + 15 u
= 22 u
Amount that each of them will have in the end
= 22 u ÷ 2
= 11 u
Amount that Archie must give to Wesley
= 11 u - 7 u
= 4 u
= 4 x 20
= $80
Answer(s): $80