Given: Total student in group A, B, and C = 56 B consists of twice the number of students in group C Group A has half the number of students than group C Calculation: Let group C has x candidates B consists of twice the number of students in group C ⇒B=2x A has half the number of students than group C ⇒A=x/2 According to the question: x+2x+x/2=56 ⇒x=112/7=16 ∴ Number of student in group C = x = 16 students