The ratio of Peter's money to Jenson's money is 3 : 7. If Jenson has $238, how much must he give to Peter so both will have the equal amount of money?
| |
Peter |
Jenson |
Total |
| Before |
3 u |
7 u |
10 u |
| Change |
+ 2 u |
- 2 u |
|
| After |
5 u |
5 u |
10 u |
Comparing Peter and
Jenson in the end |
1 |
1 |
|
Amount that Jenson has at first = 7 u
7 u = 238
1 u = 238 ÷ 7 = 34
Total amount that Jenson and Peter have
= 3 u + 7 u
= 10 u
Amount that each of them will have in the end
= 10 u ÷ 2
= 5 u
Amount that Jenson must give to Peter
= 5 u - 3 u
= 2 u
= 2 x 34
= $68
Answer(s): $68
