There are 32 students in a statistics course.  25 percent of the class received an A.  1/4 of the remaining students got either a B or C, and the rest of the students failed.  How many students failed?
A grade:32(.25)=8
32-8=<<32-8=24>>24 students remaining
B/C grade:24/4=<<24/4=6>>6
24-6=<<24-6=18>>18 students fail
#### 18