Find all School-related info fast with the new School-Specific MBA Forum

 It is currently 06 Jul 2015, 22:56

### 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 m and r are two numbers on a number line, what is the

Author Message
TAGS:
Director
Joined: 17 Oct 2005
Posts: 938
Followers: 1

Kudos [?]: 69 [0], given: 0

If m and r are two numbers on a number line, what is the [#permalink]  18 Dec 2005, 16:58
00:00

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions
If m and r are two numbers on a number line, what is the value of r?

1) The distance between r and 0 is 3 times the distance between m and 0.

2) 12 is halfway between m and r
Director
Joined: 14 Sep 2005
Posts: 993
Location: South Korea
Followers: 2

Kudos [?]: 50 [0], given: 0

Re: DS Number Line [#permalink]  18 Dec 2005, 22:13
joemama142000 wrote:
If m and r are two numbers on a number line, what is the value of r?

1) The distance between r and 0 is 3 times the distance between m and 0.

2) 12 is halfway between m and r

Distance between X and Y on a number line = | X - Y |

1) The distance between r and 0 is 3 times the distance between m and 0.

| r | = 3 x | m |

r = -3m or 3m

Insufficient.

2) 12 is halfway between m and r.

( m + r ) / 2 = 12

m + r = 24

1 & 2) The distance between r and 0 is 3 times the distance between m and 0, and 12 is halfway between m and r.

If r = -3m, m + r = -3m + m = -2m = 24 ---> m = -12, r = 36
If r = 3m, m + r = 3m + m = 4m = 24 ---> m = 6, r = 18

Insufficient.

I vote for (E).[/b]
_________________

Auge um Auge, Zahn um Zahn !

SVP
Joined: 05 Apr 2005
Posts: 1731
Followers: 5

Kudos [?]: 39 [0], given: 0

Re: DS Number Line [#permalink]  18 Dec 2005, 22:25
joemama142000 wrote:
If m and r are two numbers on a number line, what is the value of r?
1) The distance between r and 0 is 3 times the distance between m and 0.
2) 12 is halfway between m and r

its E. the order of m, r and o could be any with the above constraints...
Senior Manager
Joined: 14 Apr 2005
Posts: 418
Location: India, Chennai
Followers: 1

Kudos [?]: 6 [0], given: 0

Re: DS Number Line [#permalink]  18 Dec 2005, 22:41
One more for E, and my working is same as gamjatang
Director
Joined: 17 Oct 2005
Posts: 938
Followers: 1

Kudos [?]: 69 [0], given: 0

great explanation , the oa is E
Similar topics Replies Last post
Similar
Topics:
7 If m and r are two numbers on a number line, what is the 7 01 Jun 2008, 04:50
If m and r are two numbers on a number line, what is the 8 20 Aug 2007, 14:57
If m and r are two numbers on a number line, what is the 1 09 Mar 2007, 23:44
If m and r are two number on a number line, what is the 7 28 Oct 2006, 14:27
If m and r are two numbers on a number line, what is the 6 30 Jan 2006, 22:45
Display posts from previous: Sort by