If positive integer n is divisible by both 5 and 21, then n must be divisible by which of the following?
Choose the correct choice from the following answers.
A) 8
B) 15
C) 18
D) 24
E) 48
A number divisible by both 5,21 is 105 which s divisible by 15.   IMO : Answer 15 15
<result>B</result>
If positive integer n is divisible by both 5 and 21, then n must be divisible by which of the following?