GMAT Question of the Day - Daily to your Mailbox; hard ones only

It is currently 19 Jun 2018, 11:13

Close

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
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.

Close

Request Expert Reply

Confirm Cancel

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

If x, y and z are positive single-digit integers and x*y = z. What is

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:

Hide Tags

Expert Post
Math Expert
User avatar
V
Joined: 02 Sep 2009
Posts: 46167
If x, y and z are positive single-digit integers and x*y = z. What is [#permalink]

Show Tags

New post 19 Sep 2017, 01:32
00:00
A
B
C
D
E

Difficulty:

  55% (hard)

Question Stats:

59% (00:49) correct 41% (01:03) wrong based on 36 sessions

HideShow timer Statistics

Director
Director
User avatar
P
Joined: 18 Aug 2016
Posts: 634
GMAT 1: 630 Q47 V29
GMAT 2: 740 Q51 V38
GMAT ToolKit User Premium Member Reviews Badge
Re: If x, y and z are positive single-digit integers and x*y = z. What is [#permalink]

Show Tags

New post 19 Sep 2017, 01:48
Bunuel wrote:
If x, y and z are positive single-digit integers and x*y = z. What is z?

(1) x and y even numbers
(2) x = y


(1) x,y,z can be 2,4,8 or 2,2,4
not sufficient

(2) x,y,z can be 1,1,1 or 2,2,4 or 3,3,9
not sufficient

on combining

only 2,2,4 satisfies

C
_________________

We must try to achieve the best within us


Thanks
Luckisnoexcuse

Manager
Manager
User avatar
G
Joined: 27 Dec 2016
Posts: 231
Concentration: Marketing, Social Entrepreneurship
GPA: 3.65
WE: Marketing (Education)
Premium Member Reviews Badge
Re: If x, y and z are positive single-digit integers and x*y = z. What is [#permalink]

Show Tags

New post 19 Sep 2017, 03:03
Bunuel wrote:
If x, y and z are positive single-digit integers and x*y = z. What is z?

(1) x and y even numbers
(2) x = y


Because z is positive single digit integer, so the value is between 1 and 9.
- Statement 1 : many pairs can result in 1-9 value. We have 2*4;4*2;2*2... NS.
- Statement 2 : many pairs also. We have 1*1; 2*2 and 3*3. NS
- Combine, we only get one possible pair = 2*2.

C.
_________________

There's an app for that - Steve Jobs.

Director
Director
User avatar
V
Status: Preparing for GMAT
Joined: 25 Nov 2015
Posts: 659
Location: India
GPA: 3.64
GMAT ToolKit User Premium Member Reviews Badge CAT Tests
Re: If x, y and z are positive single-digit integers and x*y = z. What is [#permalink]

Show Tags

New post 19 Sep 2017, 03:30
Bunuel wrote:
If x, y and z are positive single-digit integers and x*y = z. What is z?

(1) x and y even numbers
(2) x = y


Given x, y, z are positive single digit integers.
S1 - x,y can be any even numbers
if x=2, y=4, z=8
or if x=2, y=2, z=4.
two different answers hence not sufficient.

S2 - x=y
if x=y=2, z=4
or if x=1,y=1, z=1
two different answers hence not sufficient.

Combining both statements x=y and both are even,
only option is x=y=2, z=4 because any other even integer will lead to z as 2 digit integer
hence C

Please press kudos, if u liked my post!
_________________

Please give kudos, if you like my post

When the going gets tough, the tough gets going...

Re: If x, y and z are positive single-digit integers and x*y = z. What is   [#permalink] 19 Sep 2017, 03:30
Display posts from previous: Sort by

If x, y and z are positive single-digit integers and x*y = z. What is

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  


GMAT Club MBA Forum Home| About| Terms and Conditions and Privacy Policy| GMAT Club Rules| Contact| Sitemap

Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne

Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.