The ratio of Vincent's money to Tommy's money is 1 : 5. If Tommy has $100, how much must he give to Vincent so both will have the equal amount of money?
| |
Vincent |
Tommy |
Total |
| Before |
1 u |
5 u |
6 u |
| Change |
+ 2 u |
- 2 u |
|
| After |
3 u |
3 u |
6 u |
Comparing Vincent and
Tommy in the end |
1 |
1 |
|
Amount that Tommy has at first = 5 u
5 u = 100
1 u = 100 ÷ 5 = 20
Total amount that Tommy and Vincent have
= 1 u + 5 u
= 6 u
Amount that each of them will have in the end
= 6 u ÷ 2
= 3 u
Amount that Tommy must give to Vincent
= 3 u - 1 u
= 2 u
= 2 x 20
= $40
Answer(s): $40
