The ratio of Tommy's money to Bryan's money is 3 : 11. If Bryan has $440, how much must he give to Tommy so both will have the equal amount of money?
| |
Tommy |
Bryan |
Total |
| Before |
3 u |
11 u |
14 u |
| Change |
+ 4 u |
- 4 u |
|
| After |
7 u |
7 u |
14 u |
Comparing Tommy and
Bryan in the end |
1 |
1 |
|
Amount that Bryan has at first = 11 u
11 u = 440
1 u = 440 ÷ 11 = 40
Total amount that Bryan and Tommy have
= 3 u + 11 u
= 14 u
Amount that each of them will have in the end
= 14 u ÷ 2
= 7 u
Amount that Bryan must give to Tommy
= 7 u - 3 u
= 4 u
= 4 x 40
= $160
Answer(s): $160
