Peter had $24 more than Pierre. After each of them bought an identical skirt from a shop. Peter was left with 3 times as much money as Pierre. Given that Peter had $73 at first, how much did each skirt cost?
| |
Peter |
Pierre |
Difference |
| Before |
$73 |
|
$24 |
| Change |
- 1 skirt |
- 1 skirt |
|
| After |
3 u |
1 u |
2 u |
Since Peter and Pierre each bought an identical skirt, the difference in amount that they had at first and in the end remains the same.
2 u = 24
1 u = 24 ÷ 2 = 12
Amount that Peter had left
= 3 u
= 3 x 12
= $36
Cost of the skirt
= 73 - 36
= $37
Answer(s): $37
