The ratio of David's money to Wesley's money is 7 : 11. If Wesley has $363, how much must he give to David so both will have the equal amount of money?
| |
David |
Wesley |
Total |
| Before |
7 u |
11 u |
18 u |
| Change |
+ 2 u |
- 2 u |
|
| After |
9 u |
9 u |
18 u |
Comparing David and
Wesley in the end |
1 |
1 |
|
Amount that Wesley has at first = 11 u
11 u = 363
1 u = 363 ÷ 11 = 33
Total amount that Wesley and David have
= 7 u + 11 u
= 18 u
Amount that each of them will have in the end
= 18 u ÷ 2
= 9 u
Amount that Wesley must give to David
= 9 u - 7 u
= 2 u
= 2 x 33
= $66
Answer(s): $66
