20! has 21 and 7 as factor also 21 has 21 and 7 as factor
2 is not a factor of 21
So (B) is correct IMO
\(20! + 21\) is NOT a multiple of which of the following?
I. 21
II. 7
III. 2
A. I only
B. III only
C. I and II
D. I and III
E. I, II, and III
2 is not a factor of 21
So (B) is correct IMO
Bunuel wrote:
\(20! + 21\) is NOT a multiple of which of the following?
I. 21
II. 7
III. 2
A. I only
B. III only
C. I and II
D. I and III
E. I, II, and III
