It is currently 23 Feb 2018, 00:40

### 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

# MGMAT - Distance Between A and D

Author Message
Manager
Joined: 16 Feb 2009
Posts: 57
Schools: Anderson FEMBA
MGMAT - Distance Between A and D [#permalink]

### Show Tags

01 Aug 2009, 22:42
00:00

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 1 sessions

### HideShow timer Statistics

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

---A---B---C---D---

The integers A, B, C, and D shown on the number line above are equally spaced. If C and D are equal to 5^12 and 5^13, respectively, what is the value of A?

(A) 5^11
(B) 5^10
(C) -5^12
(D) (-7)*5^12
(E) (-12)*5^13
Director
Joined: 05 Jun 2009
Posts: 805
WE 1: 7years (Financial Services - Consultant, BA)
Re: MGMAT - Distance Between A and D [#permalink]

### Show Tags

02 Aug 2009, 01:18
Distance between adjacent numbers= D - C = (5^12)* (5-1) = 4* (5^12)

A = C - (distance *2) = 5^12 - 2*(4*5^12)
=(-7) * 5^12

Hence, D
_________________

Consider kudos for the good post ...
My debrief : http://gmatclub.com/forum/journey-670-to-720-q50-v36-long-85083.html

Manager
Joined: 14 Apr 2008
Posts: 51
Re: MGMAT - Distance Between A and D [#permalink]

### Show Tags

02 Aug 2009, 03:31
5^13=a + (4-1)(5^13-5^12)
a = 5^13- (12*5^12)
a= -7* 5^12
Re: MGMAT - Distance Between A and D   [#permalink] 02 Aug 2009, 03:31
Display posts from previous: Sort by