Question

1/6 of the class student are above average 1/4 are average and rest are below average.if there are 48 student in all,how many students are below average in class

Answer 1

Answer:

Let the number of below average students be x.

Then,1/6×48+1/4×48+x=48

8+12+x=48

20+x=48

x=48-20

x=28

hence, number of below average students=28