If x=6y, which of the following is a multiple of x?

Question

a. 12y
b. 9y
c. 5y
d. 4y
e. 3y

Answer 1

multiples are often considered whole number multipliers.

nx=n*6y

if n=2, then the first answer is right.

Answer 2

say y =1
then x = 6
12 y = 12 which is a multiple of 6
so 12 y is a multiple of x