Owen and Carl had $158 and $126 respectively. Each of them bought a hoodie and a shirt at the same price. The cost of the hoodie was 4 times as much as the shirt. In the end, Owen had 3 times as much money as Carl. What was the difference between the cost of the shirt and the hoodie?

	Owen	Carl	Difference
Before	$158	$126	$32
Change	- 5 p	- 5 p
After	3 u	1 u	2 u

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

3 u - 1 u = 158 - 126
2 u = 32

1 u = 32 ÷ 2 = 16

Cost of 1 hoodie = 4 p
Cost of 1 shirt = 1 p

Total cost of 1 hoodie and 1 shirt
= 4 p + 1 p
= 5 p

5 p = 126 - 16
5 p = 110

1 p = 110 ÷ 5 = 22

Difference in the cost between the hoodie and the shirt
= 4 p - 1 p
= 3 p
= 3 x 22
= $66

Answer(s): $66