The ratio of Tommy's money to Ben's money is 1 : 5. If Ben has $40, how much must he give to Tommy so both will have the equal amount of money?
| |
Tommy |
Ben |
Total |
| Before |
1 u |
5 u |
6 u |
| Change |
+ 2 u |
- 2 u |
|
| After |
3 u |
3 u |
6 u |
Comparing Tommy and
Ben in the end |
1 |
1 |
|
Amount that Ben has at first = 5 u
5 u = 40
1 u = 40 ÷ 5 = 8
Total amount that Ben and Tommy have
= 1 u + 5 u
= 6 u
Amount that each of them will have in the end
= 6 u ÷ 2
= 3 u
Amount that Ben must give to Tommy
= 3 u - 1 u
= 2 u
= 2 x 8
= $16
Answer(s): $16
