Is 6 the GCD of a & b

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by nithi_mystics » Fri Aug 06, 2010 5:58 pm
Answer is C.

Stmt 1 : INSUFF because values of a and b cannot be determined
Stmt 2 : INSUFF - same as above

From the 2 statements,

2b+6 = 3b
==> b = 6
and a=18. GCD is 6.
gmatrant wrote:If a and b are positive integers divisible by 6, is 6 the greatest common divisor of a and b?

I. a = 2b+6
II.a =3b
Thanks
Nithi