Zeph and Justin had $124 and $97 respectively. Each of them bought a shirt and a hoodie at the same price. The cost of the shirt was 3 times as much as the hoodie. In the end, Zeph had 4 times as much money as Justin. What was the difference between the cost of the hoodie and the shirt?

	Zeph	Justin	Difference
Before	$124	$97	$27
Change	- 4 p	- 4 p
After	4 u	1 u	3 u

Since Zeph and Justin 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 = 124 - 97
3 u = 27

1 u = 27 ÷ 3 = 9

Cost of 1 shirt = 3 p
Cost of 1 hoodie = 1 p

Total cost of 1 shirt and 1 hoodie
= 3 p + 1 p
= 4 p

4 p = 97 - 9
4 p = 88

1 p = 88 ÷ 4 = 22

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

Answer(s): $44