At first, Riordan had $109 and Will had $83. Each of them bought a cardigan at the same price. Riordan now has three times as much money as Will. How much did each of them pay for the cardigan?
| |
Riordan |
Will |
Difference |
| Before |
$109 |
$83 |
$26 |
| Change |
- ? |
- ? |
|
| After |
3 u |
1 u |
2 u |
Since Riordan and Will each bought a cardigan at the same price, the difference in the amounts each had remains the same.
Difference in the amounts between Riordan and Will
= 3 u - 1 u
= 2 u
2 u = 109 - 83
2 u = 26
1 u = 26 ÷ 2 = 13
Amount that each of them paid for the cardigan
= 83 - 13
= $70
Answer(s): $70
