Question

If the students of a class can be grouped exactly into 6 or 8 or 10, then the minimum number of students in the class must be:
1. 120
2. 240
3. 60
4. 180

Answer 1

Correct Answer - Option 1 : 120

Concept Used

We need to find LCM of all number to find the minimum number of student

Calculation

6 = 2 × 3 

8 = 2 × 2 × 2

10 = 2 × 5 

LCM of (6, 8, and 10) = 120 

∴ The minimum number of student in the class is 120