It is currently 25 Sep 2017, 11:55

### GMAT Club Daily Prep

#### 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

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

# Events & Promotions

###### Events & Promotions in June
Open Detailed Calendar

# If v and W are diffferent integers, does v=0

Author Message
Intern
Joined: 05 Feb 2008
Posts: 40

Kudos [?]: 15 [0], given: 12

Concentration: General Management, Nonprofit
GPA: 3.81
WE: Information Technology (Health Care)
If v and W are diffferent integers, does v=0 [#permalink]

### Show Tags

02 Mar 2010, 15:43
00:00

Difficulty:

(N/A)

Question Stats:

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

### HideShow timer Statistics

Hi

the two questions 122 and 126 are kind of ambiguous(answers actually)

let me put question here

Q122). If v and W are diffferent integers, does v=0

A) vw=vexp2
B)w=2

Q126) if zexpn=1 what is the value of Z.
A) n is a non zero ineger
B) Z>0

Thanks
Sach

Kudos [?]: 15 [0], given: 12

Manager
Joined: 26 May 2005
Posts: 203

Kudos [?]: 128 [0], given: 1

Re: OG 11th edition - DS - 122 and 126 [#permalink]

### Show Tags

02 Mar 2010, 16:50
willisback wrote:
Q122). If v and W are diffferent integers, does v=0

A) vw=vexp2
B)w=2

st 1) vw - v^2 = 0
v(w-v) = 0
V=0 as w-v cannot be zero as v,w are different integers.
st 2) w=2 . Not sufficient

A
(Dont use the information given in statement 1 in statement 2 as st 2 just said w=2 and nothing about v)

Kudos [?]: 128 [0], given: 1

Manager
Joined: 26 May 2005
Posts: 203

Kudos [?]: 128 [0], given: 1

Re: OG 11th edition - DS - 122 and 126 [#permalink]

### Show Tags

02 Mar 2010, 16:59
willisback wrote:

Q126) if z^n=1 what is the value of Z.
A) n is a non zero ineger
B) Z>0

st 1) n!=0
z=-1, n = 2, z^n=1
z=1, n = 1, z^n=1
Not sufficient
st 2) z>0
Not sufficient
combining z=1

C

Kudos [?]: 128 [0], given: 1

Senior Manager
Joined: 22 Dec 2009
Posts: 356

Kudos [?]: 411 [0], given: 47

Re: OG 11th edition - DS - 122 and 126 [#permalink]

### Show Tags

03 Mar 2010, 12:47
willisback wrote:
Hi

the two questions 122 and 126 are kind of ambiguous(answers actually)

let me put question here

Q122). If v and W are diffferent integers, does v=0

A) vw=vexp2
B)w=2

Given: v # w (not equal to)
Is v = 0?
A: vw = v^2
v(w-v) = 0, which means either v =0 or v = w... but since it's given v # w, this mean v = 0. Hence SUFF

B: w = 2
v could be anything but 2.... hence NOT SUFF....

Therefore A.

willisback wrote:
Q126) if zexpn=1 what is the value of Z.
A) n is a non zero ineger
B) Z>0

Thanks
Sach

given z^n = 1
ques: z = ?

A) n # 0 .
Hence z^n = 1 means z can be -1 or +1 because (-1)^2 = 1 and (1)^2 = 1. Hence Not SUFF

B) z>0
Not Suff... as z could be anything.

A+B = SUFF as now z can only be 1 if n # 0.

Therefore C.
_________________

Cheers!
JT...........
If u like my post..... payback in Kudos!!

|For CR refer Powerscore CR Bible|For SC refer Manhattan SC Guide|

~~Better Burn Out... Than Fade Away~~

Kudos [?]: 411 [0], given: 47

Re: OG 11th edition - DS - 122 and 126   [#permalink] 03 Mar 2010, 12:47
Display posts from previous: Sort by