Answer:
C. 12
Step-by-step explanation:
All rows must have the same number of cadets. If A company has 60 cadets and B company has 72 cadets
We find the factors of 60 and 70
The factors of 60 are: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60
The factors of 72 are: 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72
Then the greatest common factor is 12.
Therefore, the greatest number of cadets who can be in each row is 12 cadets.
Option C is the correct option.
