UP Police Constable Exam Model Paper 2

Given:
The given numbers 12, 16, 24
Calculation
The least number for perfect square we find out the LCM of the given numbers
12, 16, 24
LCM = 48
Can be written, as 2 × 2 × 2 × 2 × 3 (but 3 is not in the pair)
So 2 × 2 × 2 × 2 × 3 × 3 = 144
Therefore, 144 is the least number which is a perfect square of the given numbers