The ratio of Billy's money to Warren's money is 3 : 13. If Warren has $234, how much must he give to Billy so both will have the equal amount of money?
| |
Billy |
Warren |
Total |
| Before |
3 u |
13 u |
16 u |
| Change |
+ 5 u |
- 5 u |
|
| After |
8 u |
8 u |
16 u |
Comparing Billy and
Warren in the end |
1 |
1 |
|
Amount that Warren has at first = 13 u
13 u = 234
1 u = 234 ÷ 13 = 18
Total amount that Warren and Billy have
= 3 u + 13 u
= 16 u
Amount that each of them will have in the end
= 16 u ÷ 2
= 8 u
Amount that Warren must give to Billy
= 8 u - 3 u
= 5 u
= 5 x 18
= $90
Answer(s): $90
