The ratio of Peter's money to Eric's money is 1 : 5. If Eric has $200, how much must he give to Peter so both will have the equal amount of money?
|
Peter |
Eric |
Total |
Before |
1 u |
5 u |
6 u |
Change |
+ 2 u |
- 2 u |
|
After |
3 u |
3 u |
6 u |
Comparing Peter and Eric in the end |
1 |
1 |
|
Amount that Eric has at first = 5 u
5 u = 200
1 u = 200 ÷ 5 = 40
Total amount that Eric and Peter have
= 1 u + 5 u
= 6 u
Amount that each of them will have in the end
= 6 u ÷ 2
= 3 u
Amount that Eric must give to Peter
= 3 u - 1 u
= 2 u
= 2 x 40
= $80
Answer(s): $80