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

 It is currently 23 Jan 2019, 22:38

### 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 January
PrevNext
SuMoTuWeThFrSa
303112345
6789101112
13141516171819
20212223242526
272829303112
Open Detailed Calendar
• ### Key Strategies to Master GMAT SC

January 26, 2019

January 26, 2019

07:00 AM PST

09:00 AM PST

Attend this webinar to learn how to leverage Meaning and Logic to solve the most challenging Sentence Correction Questions.
• ### Free GMAT Number Properties Webinar

January 27, 2019

January 27, 2019

07:00 AM PST

09:00 AM PST

Attend this webinar to learn a structured approach to solve 700+ Number Properties question in less than 2 minutes.

# If x is a positive number less than 10, is z greater than

Author Message
TAGS:

### Hide Tags

Manager
Joined: 10 Mar 2013
Posts: 194
GMAT 1: 620 Q44 V31
GMAT 2: 690 Q47 V37
GMAT 3: 610 Q47 V28
GMAT 4: 700 Q50 V34
GMAT 5: 700 Q49 V36
GMAT 6: 690 Q48 V35
GMAT 7: 750 Q49 V42
GMAT 8: 730 Q50 V39
Re: If x is a positive number less than 10, is z greater than  [#permalink]

### Show Tags

13 Jul 2015, 16:41
I missed this question several times over a long time period UNTIL I realized that (1) could be easily be shown to be Sufficient by drawing the number number and seeing that the only way to draw it to satisfy the statement is such that z must be greater than the midpoint of x and 10.

(2) is obviously wrong, because we don't have a concrete value for x.
Director
Joined: 10 Mar 2013
Posts: 503
Location: Germany
Concentration: Finance, Entrepreneurship
GMAT 1: 580 Q46 V24
GPA: 3.88
WE: Information Technology (Consulting)
Re: If x is a positive number less than 10, is z greater than  [#permalink]

### Show Tags

11 Jan 2016, 12:17
amitgovin wrote:
If x is a positive number less than 10, is z greater than the average (arithmetic mean) of x and 10?

(1) On the number line, z is closer to 10 than it is to x

(2) z = 5x

(1) X................Average...........Z.......10.......Z, as one can see, z is always greater than the average of 10+x
(2) z=5x
x=1, Average=10+1/2=5,5, z=5 NO
x=2, Average=10+2/2=6, z=10 YES
_________________

When you’re up, your friends know who you are. When you’re down, you know who your friends are.

800Score ONLY QUANT CAT1 51, CAT2 50, CAT3 50
GMAT PREP 670
MGMAT CAT 630
KAPLAN CAT 660

Intern
Joined: 09 Aug 2014
Posts: 20
Re: If x is a positive number less than 10, is z greater than  [#permalink]

### Show Tags

18 Oct 2016, 02:41
Bunuel wrote:
chamisool wrote:
just wondering about statement 1, am i misunderstanding the question?

"on the number line, z is closer to 10 than it is to x"

z = 11
x = 8
so z is closer to 10 than x is

is 11 > (8+10)/2
11 > (18/2) becomes 11 > 9 so the answer is YES

z = 9
x = 8
so z is closer to 10 than x is

is 9 > (8+10)/2
9 > (18/2) becomes 9 > 9 so the answer is NO

or is the question stating z is closer to 10 than z is to x? i interpreted it as z is closer to 10 than 10 is to x.

(1) says: "On the number line, z is closer to 10 than it is to x". Here "it" refers to z.

So, it's: "On the number line, z is closer to 10 than z is to x".

Similar question to practice: if-x-is-a-positive-number-less-than-10-is-z-less-than-the-131322.html

Hope it helps.

Dear Bunuel
I need your help for this similar question as following:
they changed the language in (a), confusing me to solve this

If x is a positive number less than 10, is z greater than average of x and 10?
a. z is closer to 10 than x on the number line
b. z = 5x

The highlight one means Z is closer to 10 than X is closer to 10? because if i understand that, the solution will be E, not A
Please correct me if i am wrong
Thanks
Math Expert
Joined: 02 Sep 2009
Posts: 52437
Re: If x is a positive number less than 10, is z greater than  [#permalink]

### Show Tags

17 Dec 2017, 22:49
Re: If x is a positive number less than 10, is z greater than &nbs [#permalink] 17 Dec 2017, 22:49

Go to page   Previous    1   2   [ 24 posts ]

Display posts from previous: Sort by