Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized for You

we will pick new questions that match your level based on your Timer History

Track Your Progress

every week, we’ll send you an estimated GMAT score based on your performance

Practice Pays

we will pick new questions that match your level based on your Timer History

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

It appears that you are browsing the GMAT Club forum unregistered!

Signing up is free, quick, and confidential.
Join other 500,000 members and get the full benefits of GMAT Club

Registration gives you:

Tests

Take 11 tests and quizzes from GMAT Club and leading GMAT prep companies such as Manhattan GMAT,
Knewton, and others. All are free for GMAT Club members.

Applicant Stats

View detailed applicant stats such as GPA, GMAT score, work experience, location, application
status, and more

Books/Downloads

Download thousands of study notes,
question collections, GMAT Club’s
Grammar and Math books.
All are free!

Thank you for using the timer!
We noticed you are actually not timing your practice. Click the START button first next time you use the timer.
There are many benefits to timing your practice, including:

If k is not equal to 0, 1 or -1 is 1/k>0 1) 1/k-1>0 2) [#permalink]
23 Feb 2006, 15:06

1

This post was BOOKMARKED

00:00

A

B

C

D

E

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct
0% (00:00) wrong based on 1 sessions

This topic is locked. If you want to discuss this question please re-post it in the respective forum.

If k is not equal to 0, 1 or -1 is 1/k>0

1) 1/k-1>0 2) 1/k+1>0

2.If and b are non zero numbers on the number line, is 0 between a and b

1) The distance between 1 and a is greater than the distance between 0 and b 2) The sum of the distance between 0 and a and between 0 and b is greater than the distance between 0 and sum a+b

3.In the XY plane at what two points does the graph y=(x+a) (x+b) intersect the x axis? 1) a+b=1 2) the graph intersects the y axis at (0,-6)

Question 1: A
statement 1 => k > 1 (sufficient)
statement 2 => k > -1 (not sufficient since if k = -0.5, 1/k is -ve)
Question 2: B
statement 1 => not sufficient
statement 2 => |a| + |b| > |a+b|. THis is possible only if one of the value is positive and the other is negative.
Question 3: E
statement 1 => not suff
statement 2 => not suff
1 and 2 together yield two different sets of values for a and b.
Hence, E is the answer (neither statement is sufficient)

1. OA is A , but what i still dont get is how k>1 in the first statement and why doesnt the same logic hold true for statement 2 as explained by Wilfred

2.OA is B, but i did not understand why you used the absolute value sign, the number line properties are beyond me, is there any useful site where there is detailed explaination for number line concepts