The ratio of Charlie's money to Tom's money is 5 : 11. If Tom has $220, how much must he give to Charlie so both will have the equal amount of money?
| |
Charlie |
Tom |
Total |
| Before |
5 u |
11 u |
16 u |
| Change |
+ 3 u |
- 3 u |
|
| After |
8 u |
8 u |
16 u |
Comparing Charlie and
Tom in the end |
1 |
1 |
|
Amount that Tom has at first = 11 u
11 u = 220
1 u = 220 ÷ 11 = 20
Total amount that Tom and Charlie have
= 5 u + 11 u
= 16 u
Amount that each of them will have in the end
= 16 u ÷ 2
= 8 u
Amount that Tom must give to Charlie
= 8 u - 5 u
= 3 u
= 3 x 20
= $60
Answer(s): $60
