The ratio of Michael's money to Zane's money is 5 : 13. If Zane has $637, how much must he give to Michael so both will have the equal amount of money?
| |
Michael |
Zane |
Total |
| Before |
5 u |
13 u |
18 u |
| Change |
+ 4 u |
- 4 u |
|
| After |
9 u |
9 u |
18 u |
Comparing Michael and
Zane in the end |
1 |
1 |
|
Amount that Zane has at first = 13 u
13 u = 637
1 u = 637 ÷ 13 = 49
Total amount that Zane and Michael have
= 5 u + 13 u
= 18 u
Amount that each of them will have in the end
= 18 u ÷ 2
= 9 u
Amount that Zane must give to Michael
= 9 u - 5 u
= 4 u
= 4 x 49
= $196
Answer(s): $196
