A total of

384

tickets were sold for the school play. They were either adult tickets or student tickets. The number of student tickets sold was two times the number of adult tickets sold. How many adult tickets were sold?

I believe it is 128. I may be wrong but if there are 384 tickets sold and there were 2 times more student tickets sold than adult then there are 128 tickets lift over to be adult tickets

Let x be the number of adult tickets sold, such that 2x is the number of student tickets sold.

2x + x = 384, since the number of adult and student tickets add up to the total number of tickets.

3x = 384

x = 128

So, there are 128 adult tickets, leaving 256 student tickets sold.