The tourist attraction tickets are priced at $25 and $17.  The number of $25-dollar tickets available is  1¹₆ that of the number of $17-dollar tickets. 2 out of 3 of the $25-dollar tickets and all the $17-dollar tickets were sold. The ticket sales amounted to $5904. How much more would have been collected if all the tickets were sold?

	$25	$17
Comparing $25 and $17 tickets at first	7x3 = 21 u	6x3 = 18 u
Before	3x7 = 21 u
Change	- 2x7 = - 14 u	- 18 u
After	1x7 = 7 u	0 u

The number of 25 tickets at first is repeated.  Make the number of 25 tickets the same.  LCM of 3 and 7 is 21.

1¹₆ = ⁷₆

Number of $25 tickets : $17 tickets = 7 : 6

	$25	$17	Total
Number	14 u	18 u
Value	$25	$17
Total value	350 u	306 u	$5904

Total amount collected from the sale of the sold tickets
= 350 u + 306 u
= 656 u

1 u = 5904 ÷ 656 = 9

Number of $25-tickets left unsold
= 7 u 
= 7 x 9
= 63

More amount to be collected if all the tickets were sold
= 63 x 25
= $1575

Answer(s): $1575