Check GMAT Club Decision Tracker for the Latest School Decision Releases https://gmatclub.com/AppTrack

 It is currently 29 May 2017, 03:45

### 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

# How many of integers P, Q, and R are zeroes? (1) PQR=0 (2)

Author Message
Senior Manager
Joined: 30 Aug 2003
Posts: 322
Location: dallas , tx
Followers: 1

Kudos [?]: 27 [0], given: 0

How many of integers P, Q, and R are zeroes? (1) PQR=0 (2) [#permalink]

### Show Tags

06 Feb 2004, 16:25
00:00

Difficulty:

(N/A)

Question Stats:

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

### HideShow timer Statistics

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

How many of integers P, Q, and R are zeroes?

(1) PQR=0
(2) P+Q+R=0
_________________

shubhangi

Director
Joined: 03 Jul 2003
Posts: 652
Followers: 3

Kudos [?]: 92 [0], given: 0

### Show Tags

06 Feb 2004, 16:39
Good One!

Ans: E

1) N = 1,2 or 3
2) N = 0 , 1, 3
Senior Manager
Joined: 23 Aug 2003
Posts: 461
Location: In the middle of nowhere
Followers: 1

Kudos [?]: 24 [0], given: 0

### Show Tags

06 Feb 2004, 16:41

1) Of PQR ...Insufficient
each of them can be zero..or all three can be zero...other combinations...

2) P+Q+R ...Insufficient...
(-2)+1+1.....1+0+(-1)....

Vivek.
_________________

"Start By Doing What Is Necessary ,Then What Is Possible & Suddenly You Will Realise That You Are Doing The Impossible"

Senior Manager
Joined: 30 Aug 2003
Posts: 322
Location: dallas , tx
Followers: 1

Kudos [?]: 27 [0], given: 0

### Show Tags

07 Feb 2004, 08:41
could some one explain ...how do u solve statement 2.. ??..are you guys assuming negetive value also..becoz if all are postive integers then there has tobe 3 zeros..
pls explain..
_________________

shubhangi

Manager
Joined: 15 Aug 2003
Posts: 50
Location: Singapore
Followers: 1

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

### Show Tags

07 Feb 2004, 08:44
If no condition on integers is specified,, u should try both -ve and +ve integers.
SVP
Joined: 30 Oct 2003
Posts: 1790
Location: NewJersey USA
Followers: 6

Kudos [?]: 101 [0], given: 0

### Show Tags

07 Feb 2004, 09:48
Let me explain
1) Atleast one of P, Q and R is zero. We cannot determine how many are zeroes here. It could be 1 or 2 or 3 zeroes.
2) Sum of three numbers is zero
Here it is possible that P = -(Q+R) or Q = -(P+R) and none of them might be zero.
All can be zeroes. So this condition is insufficient. Here either none are zeroes or one is zero or three are zeroes

Combine both
P = -(Q+R) here R might be zero which will satisfy A) then P = -Q which will satisfy B). So one zero will satisfy A and B
If All numbers are zero then also Both A) and B are satisfied.
So We cannot tell if there is one zer or three zeroes.

07 Feb 2004, 09:48
Display posts from previous: Sort by