The ratio of Daniel's money to Fabian's money is 1 : 7. If Fabian has $315, how much must he give to Daniel so both will have the equal amount of money?
|
Daniel |
Fabian |
Total |
Before |
1 u |
7 u |
8 u |
Change |
+ 3 u |
- 3 u |
|
After |
4 u |
4 u |
8 u |
Comparing Daniel and Fabian in the end |
1 |
1 |
|
Amount that Fabian has at first = 7 u
7 u = 315
1 u = 315 ÷ 7 = 45
Total amount that Fabian and Daniel have
= 1 u + 7 u
= 8 u
Amount that each of them will have in the end
= 8 u ÷ 2
= 4 u
Amount that Fabian must give to Daniel
= 4 u - 1 u
= 3 u
= 3 x 45
= $135
Answer(s): $135