On Saturday, Pamela, Tiffany, Jade and Xuan spent a total of $124. On Sunday, Pamela spent twice of what she spent on Saturday, Tiffany spent the same as what she spent on Saturday, Jade spent $20 less than what she spent on Saturday, and Xuan spent $6 more than what she spent on Saturday. All of them spent an equal amount on Sunday. How much did Pamela and Xuan spend altogether on Saturday?
| |
Pamela |
Tiffany |
Jade |
Xuan |
Total |
| Before |
1 u |
3 u |
3 u + $20 |
3 u - $6 |
$124 |
| Change |
x 3 |
|
- $20 |
+ $6 |
|
| After |
3 u |
3 u |
3 u |
3 u |
|
Total amount that the four girls spent on Saturday
= 1 u + 3 u + 3 u + 20 + 3 u - 6
= 10 u + 20 - 6
= 10 u + 14
10 u + 14 = 124
10 u = 124 - 14
10 u = 110
1 u = 110 ÷ 10 = 11
Total amount that Pamela and Xuan spent on Saturday
= 1 u + 3 u - 6
= 4 u - 6
= 4 x 11 - 6
= 44 - 6
= $38
Answer(s): $38
