The ratio of Michael's money to Ian's money is 5 : 9. If Ian has $369, how much must he give to Michael so both will have the equal amount of money?
| |
Michael |
Ian |
Total |
| Before |
5 u |
9 u |
14 u |
| Change |
+ 2 u |
- 2 u |
|
| After |
7 u |
7 u |
14 u |
Comparing Michael and
Ian in the end |
1 |
1 |
|
Amount that Ian has at first = 9 u
9 u = 369
1 u = 369 ÷ 9 = 41
Total amount that Ian and Michael have
= 5 u + 9 u
= 14 u
Amount that each of them will have in the end
= 14 u ÷ 2
= 7 u
Amount that Ian must give to Michael
= 7 u - 5 u
= 2 u
= 2 x 41
= $82
Answer(s): $82
