The ratio of George's money to Simon's money is 5 : 9. If Simon has $18, how much must he give to George so both will have the equal amount of money?
| |
George |
Simon |
Total |
| Before |
5 u |
9 u |
14 u |
| Change |
+ 2 u |
- 2 u |
|
| After |
7 u |
7 u |
14 u |
Comparing George and
Simon in the end |
1 |
1 |
|
Amount that Simon has at first = 9 u
9 u = 18
1 u = 18 ÷ 9 = 2
Total amount that Simon and George have
= 5 u + 9 u
= 14 u
Amount that each of them will have in the end
= 14 u ÷ 2
= 7 u
Amount that Simon must give to George
= 7 u - 5 u
= 2 u
= 2 x 2
= $4
Answer(s): $4
