If a positive integer n is divisible by both 2 and 5, then n must also be divisible by which of the ...
If a positive integer n is divisible by both 2 and 5, then n must also be divisible by which of the following?
I. 10
II. 7
III. 40
Answer/Solution
I only
Steps/Work
A multiple of 2 and 5 is also a multiple of 10, but not necessarily a multiple of 7 or 40.
The answer is B.
The answer is B.