Answer:
Number of adult tickets sold = 128
Number of student tickets sold = 384
Step-by-step explanation:
Given that:
There are two types of tickets:
1. Student tickets
2. Adult tickets
As per the question statement, number of student tickets sold were three times the adult tickets sold.
Let the number of adult tickets sold = 
So, number of students tickets sold =
Total number of tickets sold = Number of adult tickets sold + Number of student tickets sold = 512

Therefore, the answer is:
Number of adult tickets sold = 128
Number of student tickets sold =
= 384