The ratio of Glen's money to Will's money is 9 : 13. If Will has $143, how much must he give to Glen so both will have the equal amount of money?
| |
Glen |
Will |
Total |
| Before |
9 u |
13 u |
22 u |
| Change |
+ 2 u |
- 2 u |
|
| After |
11 u |
11 u |
22 u |
Comparing Glen and
Will in the end |
1 |
1 |
|
Amount that Will has at first = 13 u
13 u = 143
1 u = 143 ÷ 13 = 11
Total amount that Will and Glen have
= 9 u + 13 u
= 22 u
Amount that each of them will have in the end
= 22 u ÷ 2
= 11 u
Amount that Will must give to Glen
= 11 u - 9 u
= 2 u
= 2 x 11
= $22
Answer(s): $22
