Question

A total of 504 tickets were sold for the school play. They were either adult tickets or student tickets. There were 54 more student tickets sold than adult tickets. How many adult tickets were sold?

Answer 1

A + s = 504
s = a + 54

a + (a + 54) = 504
2a + 54 = 504
2a = 504 - 54
2a = 450
a = 450/2
a = 225 <=== adults

a + s = 504
225 + s = 504
s = 504 - 225
s = 279 <=== students