BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course

Redeem

/ help/

This topic has expert replies
Post new topic Post Reply
Previous Topic Next Topic
Junior | Next Rank: 30 Posts
Posts: 29
Joined: Wed Feb 27, 2008 4:56 am
Thanked: 2 times

/ help/

by ricaototti » Thu Sep 04, 2008 7:42 pm
is /x/ <1? (please consider the / / as the absolute value signal

1 /x +1/ = 2 /x-1/

2 /x-3/different from 0


Is there any other way of solving it without squaring both sides on1? Could I square both sides if it was a inequality?

About how many question on the GMAT are on abs value? About how many on inequalities?

Thanks!
Top
Source: — Data Sufficiency |
User avatar
Senior | Next Rank: 100 Posts
Posts: 43
Joined: Wed Jun 11, 2008 5:03 am
Location: Mumbai
GMAT Score:530

by P_mashru » Thu Sep 04, 2008 10:10 pm
Option 1:

by considering modes on both sides as +ve, we are getting x as 3 & -3
by considering modes on either side as +ve, we are getting x as 1/3 & -1/3

Ambiguous and hence not sufficient

Option 2:
/x-3/ is not equal to 0
means x is not equal to 3

not sufficient

Joining option 1 & 2
sufficient as /x/ = 1/3

IMO c. What is OA?
I am I
Top
Post new topic Post Reply
• Page 1 of 1