posted by Sarah
A group of teachers and pupils attended a concert. The teachers paid $1200 altogether and the pupils paid $640 altogether for their tickets.
The price of an adult ticket was $60 and there were 4 more female teachers than male teachers. How many male teachers were there in the group
If there were x male teachers, then we know that
f = m+4, so
(m + m+4) * 60 = 1200
Now just find m