The ratio of Fred's money to Owen's money is 3 : 7. If Owen has $350, how much must he give to Fred so both will have the equal amount of money?
|
Fred |
Owen |
Total |
Before |
3 u |
7 u |
10 u |
Change |
+ 2 u |
- 2 u |
|
After |
5 u |
5 u |
10 u |
Comparing Fred and Owen in the end |
1 |
1 |
|
Amount that Owen has at first = 7 u
7 u = 350
1 u = 350 ÷ 7 = 50
Total amount that Owen and Fred have
= 3 u + 7 u
= 10 u
Amount that each of them will have in the end
= 10 u ÷ 2
= 5 u
Amount that Owen must give to Fred
= 5 u - 3 u
= 2 u
= 2 x 50
= $100
Answer(s): $100