Jeremy and Tommy had $156 and $120 respectively. Each of them bought a blouse and a jacket at the same price. The cost of the blouse was 5 times as much as the jacket. In the end, Jeremy had 3 times as much money as Tommy. What was the difference between the cost of the jacket and the blouse?

	Jeremy	Tommy	Difference
Before	$156	$120	$36
Change	- 6 p	- 6 p
After	3 u	1 u	2 u

Since Jeremy and Tommy 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 = 156 - 120
2 u = 36

1 u = 36 ÷ 2 = 18

Cost of 1 blouse = 5 p
Cost of 1 jacket = 1 p

Total cost of 1 blouse and 1 jacket
= 5 p + 1 p
= 6 p

6 p = 120 - 18
6 p = 102

1 p = 102 ÷ 6 = 17

Difference in the cost between the blouse and the jacket
= 5 p - 1 p
= 4 p
= 4 x 17
= $68

Answer(s): $68