My Math Forum Simple quantitative comparison
 User Name Remember Me? Password

 Elementary Math Fractions, Percentages, Word Problems, Equations, Inequations, Factorization, Expansion

 November 27th, 2016, 03:08 PM #1 Newbie   Joined: Nov 2016 From: usa Posts: 1 Thanks: 0 Simple quantitative comparison OK, I was going thru a very common book for QC, which I find on multiple websites: "501 Quantitative Comparison Questions" One such website is https://www.scribd.com/doc/2744902/5...ison-Questions If you look at question 18 on page 3, it compares ( p squared ) with - (p squared) The and explanation that book gives is as follows: A : Any number squared is positive. Therefore, p squared is positive and - p squared is negative. A positive number is always greater than a negative number. Quantity A is greater ============= I see that they overlooked the fact that p could be 0 in which case both sides will be equal. So it should actually be D (cannot be determined conclusively). Just wondering, how could they miss this important fact or am I missing something (?) Last edited by skipjack; November 27th, 2016 at 06:36 PM.
 November 27th, 2016, 05:10 PM #2 Math Team   Joined: Jul 2011 From: Texas Posts: 2,751 Thanks: 1401 yes, the answer provider forgot to include zero as a possible value for p ... given solutions are not always correct. It happens. Thanks from mmfbk Last edited by skeeter; November 27th, 2016 at 05:13 PM.

 Tags comparison, quantitative, simple

 Thread Tools Display Modes Linear Mode

 Similar Threads Thread Thread Starter Forum Replies Last Post nyuviolets Algebra 5 July 27th, 2015 04:23 AM zaff9 Calculus 1 April 18th, 2013 06:05 AM ChristinaScience New Users 1 May 13th, 2012 06:15 PM fuzzwaz Calculus 3 November 5th, 2011 02:34 PM ChristinaScience Calculus 0 December 31st, 1969 04:00 PM

 Contact - Home - Forums - Cryptocurrency Forum - Top