Hi All,
It looks like most of the posters have correctly determined that neither of the individual Facts is sufficient on its own, so I won't rehash any of that here.
When combining Facts, we end up with the 3 areas of the 3 faces....
LW, WH and LH are represented (in some order) by the numbers 20, 28 and 35
Since the prompt asks us for the VOLUME of the solid (V = LWH) we don't have to figure out the specific values of L, W and H, as long as we know what they are (in some order).
We could set up a "system" of equations using these values:
eg.
LH = 20
WH = 28
LW = 35
Here, we have 3 variables and 3 unique equations, so we CAN solve it (and there will be just one answer for this specific example). Playing around a bit with the numbers, you should be able to see that the individual measurements are 4, 5 and 7 (in some order), so the Volume = (4)(5)(7) = 140. There is NO other option. Combined, SUFFICIENT.
Final Answer:
GMAT assassins aren't born, they're made,
Rich
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