Gwen and Sam went shopping with a total of $69. After Gwen spent
25 of her money and Sam spent
56 of his money, they each had an equal amount of money left. How much money did they spend altogether?
| |
Gwen |
Sam |
Total |
Before |
5 u |
6x3 =
18 u |
$69 |
Change |
- 2 u |
- 5x3 =
- 15 u |
|
After |
3 u |
1x3 =
3 u |
|
The amount that Gwen and Sam each had in the end is the same. Make the amount that each had in the end the same. LCM of 3 and 1 is 3.
Total amount that Gwen and Sam had at first
= 5 u + 18 u
= 23 u
23 u = 69
1 u = 69 ÷ 23 = 3
Total amount that Gwen and Sam spent
= 2 u + 15 u
= 17 u
= 17 x 3
= $51
Answer(s): $51
