Pamela and Gwen had the same amount of money at first. After Pamela gave $40 to her cousin, Gwen had 3 times as much money as Pamela. How much did Pamela have in the end?
| |
Pamela |
Gwen |
| Before |
1x3 =
3 u |
1x3 =
3 u |
| Change |
- $40 |
|
| After |
1 u |
3 u |
The amount that Gwen had at first and in the end remains unchanged. Make the amount that Gwen had the same. LCM of 1 and 3 is 3.
Amount that Pamela gave to her cousin
= 3 u - 1 u
= 2 u
2 u = 40
1 u = 40 ÷ 2 = 20
Amount that Pamela had in the end
= 1 u
= $40
Answer(s): $40
