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

Redeem

28-34

This topic has expert replies
Post new topic Post Reply
Previous Topic Next Topic
Source: — Problem Solving |
Senior | Next Rank: 100 Posts
Posts: 98
Joined: Mon Jun 11, 2007 10:32 pm
Location: Mumbai

by ratindasgupta » Thu Aug 30, 2007 1:18 pm
Answer is D.

I) 1/x - 1/z = (z-x)/xz. Dunno if its equal to 0

II) 1/z + (z-1)/z. Working out this expression ,we get 1. True

III) z/2 + z/2. Working out this epression, we get z. True.

Answer is D.
Top
Master | Next Rank: 500 Posts
Posts: 484
Joined: Sun Jul 30, 2006 7:01 pm
Thanked: 2 times
Followed by:1 members

by magical cook » Thu Aug 30, 2007 2:22 pm
Thank you but the answer seems to be E (I, II, III)

Hmm, can anyone explain why??
Top
Senior | Next Rank: 100 Posts
Posts: 98
Joined: Mon Jun 11, 2007 10:32 pm
Location: Mumbai

by ratindasgupta » Fri Aug 31, 2007 3:05 am
magical cook wrote:Thank you but the answer seems to be E (I, II, III)

Hmm, can anyone explain why??
For I to be true, x and z have to be of equal value. That is not stated or implied in the question.

Does anyone else have an alternate explanation?
Top
Master | Next Rank: 500 Posts
Posts: 321
Joined: Tue Aug 28, 2007 5:42 am
Thanked: 1 times

by kajcha » Fri Aug 31, 2007 1:17 pm
I agree with ratin.. 1 cannot be true unless x=z
Top
Post new topic Post Reply
• Page 1 of 1