The ratio of Ahmad's money to Simon's money is 1 : 5. If Simon has $20, how much must he give to Ahmad so both will have the equal amount of money?
| |
Ahmad |
Simon |
Total |
| Before |
1 u |
5 u |
6 u |
| Change |
+ 2 u |
- 2 u |
|
| After |
3 u |
3 u |
6 u |
Comparing Ahmad and
Simon in the end |
1 |
1 |
|
Amount that Simon has at first = 5 u
5 u = 20
1 u = 20 ÷ 5 = 4
Total amount that Simon and Ahmad have
= 1 u + 5 u
= 6 u
Amount that each of them will have in the end
= 6 u ÷ 2
= 3 u
Amount that Simon must give to Ahmad
= 3 u - 1 u
= 2 u
= 2 x 4
= $8
Answer(s): $8
