MATH
posted by
3rd
.
iF YOU DIVIDE 30 BY ME, THE ANSWER IS 3 DOUBLED. WHAT NUMBER AM i >

MATH 
engmath
270
just to check
270/30= 9
which is 3*3

MATH (correction) 
PsyDAG
From the information provided, here is the equation.
30/x = 3 * 2
30/x = 6
30 = 6x
x = 5