Bobby and Ben have a total of $126. If Bobby gives Ben $42, they will each have an equal amount of money. How much money has each of them at first?
- Bobby
- Ben
|
Bobby |
Ben |
Total |
Before |
1 u + 42 |
1 u - 42 |
$126 |
Change |
- 42 |
+ 42 |
|
After |
1 u |
1 u |
$126 |
(a)
Total amount that Bobby and Ben have in the end
= 1 u + 1 u
= 2 u
2 u = 126
1 u = 126 ÷ 2 = 63
Amount that Bobby has at first
= 1 u + 42
= 63 + 42
= $105
Amount that Ben has at first
= 126 - 105
= $21
Answer(s): (a) $105; (b) $21