The ratio of Glen's money to Zane's money is 7 : 13. If Zane has $247, how much must he give to Glen so both will have the equal amount of money?
| |
Glen |
Zane |
Total |
| Before |
7 u |
13 u |
20 u |
| Change |
+ 3 u |
- 3 u |
|
| After |
10 u |
10 u |
20 u |
Comparing Glen and
Zane in the end |
1 |
1 |
|
Amount that Zane has at first = 13 u
13 u = 247
1 u = 247 ÷ 13 = 19
Total amount that Zane and Glen 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 Glen
= 10 u - 7 u
= 3 u
= 3 x 19
= $57
Answer(s): $57
