The tourist attraction tickets are priced at $25 and $18.  The number of $25-dollar tickets available is  2³₄ that of the number of $18-dollar tickets. 2 out of 3 of the $25-dollar tickets and all the $18-dollar tickets were sold. The ticket sales amounted to $1532. How much more would have been collected if all the tickets were sold?

	$25	$18
Comparing $25 and $18 tickets at first	11x3 = 33 u	4x3 = 12 u
Before	3x11 = 33 u
Change	- 2x11 = - 22 u	- 12 u
After	1x11 = 11 u	0 u

The number of 25 tickets at first is repeated.  Make the number of 25 tickets the same.  LCM of 3 and 11 is 33.

2³₄ = ¹¹₄

Number of $25 tickets : $18 tickets = 11 : 4

	$25	$18	Total
Number	22 u	12 u
Value	$25	$18
Total value	550 u	216 u	$1532

Total amount collected from the sale of the sold tickets
= 550 u + 216 u
= 766 u

1 u = 1532 ÷ 766 = 2

Number of $25-tickets left unsold
= 11 u 
= 11 x 2
= 22

More amount to be collected if all the tickets were sold
= 22 x 25
= $550

Answer(s): $550