Pierre and Elijah had $232 and $175 respectively. Each of them bought a sweater and a skirt at the same price. The cost of the sweater was 5 times as much as the skirt. In the end, Pierre had 4 times as much money as Elijah. What was the difference between the cost of the skirt and the sweater?

	Pierre	Elijah	Difference
Before	$232	$175	$57
Change	- 6 p	- 6 p
After	4 u	1 u	3 u

Since Pierre and Elijah bought the same items at the same price, the difference in the amounts they had remains unchanged at first and in the end.

4 u - 1 u = 232 - 175
3 u = 57

1 u = 57 ÷ 3 = 19

Cost of 1 sweater = 5 p
Cost of 1 skirt = 1 p

Total cost of 1 sweater and 1 skirt
= 5 p + 1 p
= 6 p

6 p = 175 - 19
6 p = 156

1 p = 156 ÷ 6 = 26

Difference in the cost between the sweater and the skirt
= 5 p - 1 p
= 4 p
= 4 x 26
= $104

Answer(s): $104