if the ones digit ofa numbre greater than 1 is 0, what factor or factors must that number have?

Question

a.2 only
b.5 only
c.2 and 5
d.neither 2 or 5

Answer 1

since the number ends in zero, it must be
(10)k
=2*5*k

so if it ends in zero, it must divide by both 2 and 5

Answer 2

thanks

Answer 3

C is the answer