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

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1/4 = A

x = B.A

total no . of students in the class = 48

no . of students who are A.A = 1/6×48=8

no . of students who are A = 1/4×48=12

no . of students who are B.A = 48-8+12=48-20=28

= 1-5/12

= 7/12

no . of students who are below average = 7/12×48

⇒ 28 .