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

It is currently 19 Sep 2014, 13:58

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.

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

I've been working through the PG 10th edition, and came

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
Manager
Manager
User avatar
Joined: 22 Feb 2004
Posts: 60
Location: Florida
Followers: 1

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

I've been working through the PG 10th edition, and came [#permalink] New post 23 Feb 2007, 08:42
I've been working through the PG 10th edition, and came across 2 questions I had trouble with in a row. # 63 and 64 in problem solving.

If each of the following fractions were written as a repeating decimal, which would have the longest sequence of different digits?

A. 2/11
B. 1/3
C. 41/99
D. 2/3
E. 23/37


I knew 1/3 and 2/3 only had 1 digit repeating from memory, but how are you supposed to figure out the other 3 fractions without actually doing the division? I figured out the trick with fractions with a denominator of 11 after doing this problem, but I still wouldn't know how to easily compare these fractions.


Today Rose is twice as old as Sam and Sam is 3 years younger than Tina. If Rose, Sam, and Tina are all alive 4 years from today, which of the following must be true on that day?

1. Rose is twice as old as Sam
2. Sam is 3 years younger than Tina
3. Rose is older than Tina

(A) 1 only
(B) 2 only
(C) 3 only
(D) 1 and 2
(E) 2 and 3

1 is obviously not true, since you added 4 to the ages so it wouldn't stay doubles. 2 is obviously true, as the difference would stay the same.

The problem I have is with the third statment. If you R=2S and S=T-3, it comes out to R>T only if 2(T-3)>T or T>6. The OA says because of this restriction only statement 2 is true.

I got to this point, but I reasoned that since Sam is 3 years young than Tina, the youngest Tina could be is 3, since Sam couldn't have a negative age. 4 years later, the youngest Tina could be is 7, which is > 6 and thus makes statement 3 true. Am I right and is the OA wrong?
I've been working through the PG 10th edition, and came   [#permalink] 23 Feb 2007, 08:42
    Similar topics Author Replies Last post
Similar
Topics:
Experts publish their posts in the topic Rate the 10th Edition OG m990540 2 11 Mar 2011, 07:10
OG-10th edition or 12th edition rite2deepti 5 03 Oct 2010, 20:11
I've been working through the PG 10th edition, and came maxpowers 3 23 Feb 2007, 08:47
OG 10th Edition RJ417 1 30 Sep 2005, 12:01
EXCELLENT OG 10th Edition COMPANION TOOL BudweisAr 0 29 Sep 2004, 11:48
Display posts from previous: Sort by

I've been working through the PG 10th edition, and came

  Question banks Downloads My Bookmarks Reviews Important topics  


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

Powered by phpBB © phpBB Group and phpBB SEO

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®.