The ratio of Zeph's money to Zane's money is 7 : 13. If Zane has $299, how much must he give to Zeph so both will have the equal amount of money?
| |
Zeph |
Zane |
Total |
| Before |
7 u |
13 u |
20 u |
| Change |
+ 3 u |
- 3 u |
|
| After |
10 u |
10 u |
20 u |
Comparing Zeph and
Zane in the end |
1 |
1 |
|
Amount that Zane has at first = 13 u
13 u = 299
1 u = 299 ÷ 13 = 23
Total amount that Zane and Zeph have
= 7 u + 13 u
= 20 u
Amount that each of them will have in the end
= 20 u ÷ 2
= 10 u
Amount that Zane must give to Zeph
= 10 u - 7 u
= 3 u
= 3 x 23
= $69
Answer(s): $69
