Question

28 students were divided into three groups A, B, and C. Group B consists of twice the number of students as in Group C. Group A has half the number of students as in Group C. How many students are there in Group C?
1. 4
2. 6
3. 8
4. 14

Answer 1

Correct Answer - Option 3 : 8

Given:

Total number of students = 28

Calculation:

Let number of students in group A, B and C be a, b and c respectively.

⇒ b = 2c

⇒ a = c/2

⇒ a + b + c = 28

⇒ c/2 + 2c + c = 28

⇒ 7c = 56

⇒ c = 8

∴ Number of students in group C is 8.