6
All 136 members of the Oblainda Club are obliged to buy a ticket for the Club's Annual Dinner,
costing $40, whether or not they attend. In addition, each member has the option to buy one guest
ticket for $50. No guest may attend without the member who has bought the ticket.
183 people attended this year's dinner, including all the guests who had tickets. The total paid for
tickets was $9140.
[3]
How many members did not attend this year's dinner?