The ratio of Andy's money to Xavier's money is 1 : 5. If Xavier has $105, how much must he give to Andy so both will have the equal amount of money?
| |
Andy |
Xavier |
Total |
| Before |
1 u |
5 u |
6 u |
| Change |
+ 2 u |
- 2 u |
|
| After |
3 u |
3 u |
6 u |
Comparing Andy and
Xavier in the end |
1 |
1 |
|
Amount that Xavier has at first = 5 u
5 u = 105
1 u = 105 ÷ 5 = 21
Total amount that Xavier and Andy have
= 1 u + 5 u
= 6 u
Amount that each of them will have in the end
= 6 u ÷ 2
= 3 u
Amount that Xavier must give to Andy
= 3 u - 1 u
= 2 u
= 2 x 21
= $42
Answer(s): $42
