Sebastian and William shared $30 equally. How much money must Sebastian give to William so that William will have five times as much money as Sebastian?
| |
Sebastian |
William |
Total |
| Before |
15 |
15 |
30 |
| Change |
- 10 |
+ 10 |
|
| After |
1 u |
5 u |
30 |
Amount that each of them had at first
= 30 ÷ 2
= $15
Amount that Sebastian had = 1 u
Amount that William had = 5 u
Total amount that Sebastian and William
= 1 u + 5 u
= 6 u
6 u = 30
1 u = 30 ÷ 6 = 5
Amount that Sebastian must give to William
= 15 - 5
= $10
Answer(s): $10
