Answer:
600 tickets does it sells.
Explanation:
Total Capacity of the theater is, 1800 people.
and sells
of its seats.
To find how many ticket it sell.
Tickets sold is equal to the one third of the capacity of the theater
therefore,
Tickets sold


Hence, a theater holds 1,800 people and sells 1/3 of its seats then it sells the 600 tickets.