Warren and Ken had $188 and $108 respectively. Each of them bought a jacket and a skirt at the same price. The cost of the jacket was 3 times as much as the skirt. In the end, Warren had 5 times as much money as Ken. What was the difference between the cost of the skirt and the jacket?

	Warren	Ken	Difference
Before	$188	$108	$80
Change	- 4 p	- 4 p
After	5 u	1 u	4 u

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

5 u - 1 u = 188 - 108
4 u = 80

1 u = 80 ÷ 4 = 20

Cost of 1 jacket = 3 p
Cost of 1 skirt = 1 p

Total cost of 1 jacket and 1 skirt
= 3 p + 1 p
= 4 p

4 p = 108 - 20
4 p = 88

1 p = 88 ÷ 4 = 22

Difference in the cost between the jacket and the skirt
= 3 p - 1 p
= 2 p
= 2 x 22
= $44

Answer(s): $44