The ratio of Valen's money to Zane's money is 3 : 13. If Zane has $39, how much must he give to Valen so both will have the equal amount of money?
| |
Valen |
Zane |
Total |
| Before |
3 u |
13 u |
16 u |
| Change |
+ 5 u |
- 5 u |
|
| After |
8 u |
8 u |
16 u |
Comparing Valen and
Zane in the end |
1 |
1 |
|
Amount that Zane has at first = 13 u
13 u = 39
1 u = 39 ÷ 13 = 3
Total amount that Zane and Valen have
= 3 u + 13 u
= 16 u
Amount that each of them will have in the end
= 16 u ÷ 2
= 8 u
Amount that Zane must give to Valen
= 8 u - 3 u
= 5 u
= 5 x 3
= $15
Answer(s): $15
