The ratio of Billy's money to Glen's money is 1 : 5. If Glen has $125, how much must he give to Billy so both will have the equal amount of money?
| |
Billy |
Glen |
Total |
| Before |
1 u |
5 u |
6 u |
| Change |
+ 2 u |
- 2 u |
|
| After |
3 u |
3 u |
6 u |
Comparing Billy and
Glen in the end |
1 |
1 |
|
Amount that Glen has at first = 5 u
5 u = 125
1 u = 125 ÷ 5 = 25
Total amount that Glen and Billy have
= 1 u + 5 u
= 6 u
Amount that each of them will have in the end
= 6 u ÷ 2
= 3 u
Amount that Glen must give to Billy
= 3 u - 1 u
= 2 u
= 2 x 25
= $50
Answer(s): $50
