GMAT Prep Test

[awilhelm]

If m and r are two numbers on a number line, what is the value of r?

1) The distance between r and 0 is 3 times the distance between m and 0.
2) 12 is halfway between m and r

OA is E, but what values are possible for m and r other than m = 6 and r = 18?

Thanks in advance...

[cramya]

-12 and 36

[awilhelm]

right, thanks.