Ken had four times as much money as Bobby. After Ken spent $117 and Bobby spent $27, they had the same amount of money left.
- How much did Bobby have at first?
- How much had each of them left in the end?
|
Ken |
Bobby |
Before |
4 u |
1 u |
Change |
- 117 |
- 27 |
After |
4 u - 117 |
1 u - 27 |
The amounts that Ken and Bobby had left in the end is the same.
4 u - 117 = 1 u - 27
4 u - 1 u = 117 - 27
3 u = 90
1 u = 90 ÷ 3 = 30
Amount that Bobby had at first
= 1 u
= $30
(a)
Amount that each of them had in the end
= 30 - 27
= $3
Answer(s): (a) $30; (b) $3