zanaik89 wrote:
Bunuel wrote:
3. If a, b and c are integers, is abc an even integer?
In order the product of the integers to be even at leas on of them must be even
(1) b is halfway between a and c --> on the GMAT we often see such statement and it can ALWAYS be expressed algebraically as\(b=\frac{a+c}{2}\) . Now, does that mean that at leas on of them is be even? Not necessarily, consider\(a=1\) ,\(b=3\) and\(c=5\) . Of course it's also possible that\(b=even\) , for example if\(a=1\) and\(b=7\) . Not sufficient.
(2) a = b - c -->\(a+c=b\)
In order the product of the integers to be even at leas on of them must be even
(1) b is halfway between a and c --> on the GMAT we often see such statement and it can ALWAYS be expressed algebraically as\(b=\frac{a+c}{2}\) . Now, does that mean that at leas on of them is be even? Not necessarily, consider\(a=1\) ,\(b=3\) and\(c=5\) . Of course it's also possible that\(b=even\) , for example if\(a=1\) and\(b=7\) . Not sufficient.
(2) a = b - c -->\(a+c=b\)
...
.jpg)
