A total of 227 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?
------------------------
Equations:
a + s = 227 tickets
s = 2a
--------------------
Substitute for "s" and solve for "a":
a + 2a = 227
3a = 227
a = 75 2/3
----
It doesn't make sense to say that 75 2/3 adult tickets were sold.
----
=============
