If r and s are integers, is r+s divisble by 3?
1) s is divisible by 3
2) r is divisible by 3
Sorry to spoil it but the OA here is C. My gripe is what if s=3 and r=-3? Then 0 is not divisible by 3. I know it's kind of a funky question and some may say "this wouldnt be on the gmat", but this is from the gmat q review! It was an actual gmat question!!
0 is divisable by all numbers... ifs s=3 r=-3.... then 0/3=0