<p>Here’s the problem from the Sparknotes 10 practice tests for the new SAT:</p>
<p>If fghi< 0, and fhij = 2, then which of the following must be true?</p>
<p>A) f=0
B) i=0
C) g<1
D) fhi<1
E) j is an integer</p>
<p>When I solved this problem, I ended up crossing out all the choices, but the book says the answer is i. Is there a mistake in the book or am I missing something? Thanks.</p>
<p>the answer is i? i=0. Well I did use sparknotes, for around a week before I realized it was a very inaccurate and mistake riddled book. I urge you to use a different sat prep book. Mcgrawhill, barrons, collegeboard.</p>
<p>multiplication has a communitive property, so if
fghi < 0
(fhi) g < 0
(fhi) j = 2 > 0</p>
<p>since fhij and fhig are both not zero, g, fhi, and j are all non-zero
however, CDE can all be satisfied (i.e. fhi = .5, j = 4, g = -3)</p>
<p>therefore, not only is this problem silly, but i does not equal 0.</p>