The tourist attraction tickets are priced at $18 and $10.  The number of $18-dollar tickets available is  1¹₂ that of the number of $10-dollar tickets. 3 out of 4 of the $18-dollar tickets and all the $10-dollar tickets were sold. The ticket sales amounted to $484. How much more would have been collected if all the tickets were sold?

	$18	$10
Comparing $18 and $10 tickets at first	3x4 = 12 u	2x4 = 8 u
Before	4x3 = 12 u
Change	- 3x3 = - 9 u	- 8 u
After	1x3 = 3 u	0 u

The number of 18 tickets at first is repeated.  Make the number of 18 tickets the same.  LCM of 4 and 3 is 12.

1¹₂ = ³₂

Number of $18 tickets : $10 tickets = 3 : 2

	$18	$10	Total
Number	9 u	8 u
Value	$18	$10
Total value	162 u	80 u	$484

Total amount collected from the sale of the sold tickets
= 162 u + 80 u
= 242 u

1 u = 484 ÷ 242 = 2

Number of $18-tickets left unsold
= 3 u 
= 3 x 2
= 6

More amount to be collected if all the tickets were sold
= 6 x 18
= $108

Answer(s): $108