The ratio of Fabian's money to Harry's money is 7 : 11. If Harry has $66, how much must he give to Fabian so both will have the equal amount of money?
| |
Fabian |
Harry |
Total |
| Before |
7 u |
11 u |
18 u |
| Change |
+ 2 u |
- 2 u |
|
| After |
9 u |
9 u |
18 u |
Comparing Fabian and
Harry in the end |
1 |
1 |
|
Amount that Harry has at first = 11 u
11 u = 66
1 u = 66 ÷ 11 = 6
Total amount that Harry and Fabian have
= 7 u + 11 u
= 18 u
Amount that each of them will have in the end
= 18 u ÷ 2
= 9 u
Amount that Harry must give to Fabian
= 9 u - 7 u
= 2 u
= 2 x 6
= $12
Answer(s): $12
