Questions about the world of GMAT Math from other sources and general math related questions.
PLN
 
 

DS Lab #2

by PLN Mon Apr 14, 2008 3:29 pm

Can you please contrast questions 183 and 222? I don't see why the 'FIZ' method would not be used in question 183 while it is used in question 222.

Thanks.
RonPurewal
Students
 
Posts: 19744
Joined: Tue Aug 14, 2007 8:23 am
 

Re: DS Lab #2

by RonPurewal Fri Apr 18, 2008 9:15 pm

PLN Wrote:Can you please contrast questions 183 and 222? I don't see why the 'FIZ' method would not be used in question 183 while it is used in question 222.

Thanks.


you can't use fiz in problem 183 because the 'f' and 'z' don't work in the first statement.
statement (1) says that x^2 is greater than 1; if x is a fraction ('f') or zero ('z'), that's impossible.