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

It is currently 17 Jun 2018, 21:11

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

In sequence S, all odd numbered terms are equal and all even numbered

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

Hide Tags

Moderator
avatar
V
Joined: 29 Jan 2015
Posts: 798
Location: India
WE: General Management (Non-Profit and Government)
GMAT ToolKit User Reviews Badge CAT Tests
In sequence S, all odd numbered terms are equal and all even numbered [#permalink]

Show Tags

New post Updated on: 16 May 2017, 00:30
00:00
A
B
C
D
E

Difficulty:

  15% (low)

Question Stats:

94% (00:35) correct 6% (01:26) wrong based on 34 sessions

HideShow timer Statistics

In sequence S, all odd numbered terms are equal and all even numbered terms are equal. The first term in the sequence is \(\sqrt{2}\) and the second term is –2. What is approximately the sum of two consecutive terms of the sequence?

(A) –2
(B) –0.6
(C) 0
(D) 2
(E) 0.8

_________________

If you liked my post, kindly give me a Kudos. Thanks.


Originally posted by rohan2345 on 16 May 2017, 00:27.
Last edited by Bunuel on 16 May 2017, 00:30, edited 1 time in total.
Edited the question.
Expert Post
Math Expert
User avatar
V
Joined: 02 Sep 2009
Posts: 46047
Re: In sequence S, all odd numbered terms are equal and all even numbered [#permalink]

Show Tags

New post 16 May 2017, 00:32
rohan2345 wrote:
In sequence S, all odd numbered terms are equal and all even numbered terms are equal. The first term in the sequence is \(\sqrt{2}\) and the second term is –2. What is approximately the sum of two consecutive terms of the sequence?

(A) –2
(B) –0.6
(C) 0
(D) 2
(E) 0.8


\(\sqrt{2} \approx 1.4\), thus the sum of two consecutive terms of the sequence \(\approx 1.4 - 2 = -0.6\).

Answer: B.
_________________

New to the Math Forum?
Please read this: Ultimate GMAT Quantitative Megathread | All You Need for Quant | PLEASE READ AND FOLLOW: 12 Rules for Posting!!!

Resources:
GMAT Math Book | Triangles | Polygons | Coordinate Geometry | Factorials | Circles | Number Theory | Remainders; 8. Overlapping Sets | PDF of Math Book; 10. Remainders | GMAT Prep Software Analysis | SEVEN SAMURAI OF 2012 (BEST DISCUSSIONS) | Tricky questions from previous years.

Collection of Questions:
PS: 1. Tough and Tricky questions; 2. Hard questions; 3. Hard questions part 2; 4. Standard deviation; 5. Tough Problem Solving Questions With Solutions; 6. Probability and Combinations Questions With Solutions; 7 Tough and tricky exponents and roots questions; 8 12 Easy Pieces (or not?); 9 Bakers' Dozen; 10 Algebra set. ,11 Mixed Questions, 12 Fresh Meat

DS: 1. DS tough questions; 2. DS tough questions part 2; 3. DS tough questions part 3; 4. DS Standard deviation; 5. Inequalities; 6. 700+ GMAT Data Sufficiency Questions With Explanations; 7 Tough and tricky exponents and roots questions; 8 The Discreet Charm of the DS; 9 Devil's Dozen!!!; 10 Number Properties set., 11 New DS set.


What are GMAT Club Tests?
Extra-hard Quant Tests with Brilliant Analytics

Director
Director
User avatar
D
Joined: 04 Dec 2015
Posts: 700
Location: India
Concentration: Technology, Strategy
Schools: ISB '19, IIMA , IIMB, XLRI
WE: Information Technology (Consulting)
GMAT ToolKit User
Re: In sequence S, all odd numbered terms are equal and all even numbered [#permalink]

Show Tags

New post 16 May 2017, 04:11
In sequence S, all odd numbered terms are equal and all even numbered terms are equal. The first term in the sequence is \(\sqrt{2}\) and the second term is –2. What is approximately the sum of two consecutive terms of the sequence?

Since its mentioned in the question all odd numbered terms are equal and all even numbered terms are equal.
All odd numbered terms = \(\sqrt{2}\)
[\(\sqrt{2}\) = 1.4 (approximately)]
All even numbered terms = -2
Therefore sum of consecutive terms = \(\sqrt{2}\) + (-2) = \(\sqrt{2}\) - 2
Required sum = 1.4 - 2 = - 0.6 ... Answer B.....

_________________
Kindly press "+1 Kudos" to appreciate :)
Expert Post
Top Contributor
1 KUDOS received
CEO
CEO
User avatar
P
Joined: 12 Sep 2015
Posts: 2557
Location: Canada
Re: In sequence S, all odd numbered terms are equal and all even numbered [#permalink]

Show Tags

New post 16 May 2017, 07:10
1
Top Contributor
A small note concerning the approximate values of some roots (as the 2 posters above have noted).

On the GMAT, it is very useful to memorize the following approximations:

√2 ≈ 1.4
√3 ≈ 1.7
√5 ≈ 2.2

Cheers,
Brent
_________________

Brent Hanneson – Founder of gmatprepnow.com

Image

Expert Post
EMPOWERgmat Instructor
User avatar
D
Status: GMAT Assassin/Co-Founder
Affiliations: EMPOWERgmat
Joined: 19 Dec 2014
Posts: 11794
Location: United States (CA)
GMAT 1: 800 Q51 V49
GRE 1: 340 Q170 V170
Re: In sequence S, all odd numbered terms are equal and all even numbered [#permalink]

Show Tags

New post 17 May 2017, 13:53
Hi rohan2345,

While the answer choices might look "close" to one another, they're sufficiently 'spaced out' that you really don't need to do much math to answer this question.

To start, you probably know a couple of simple square roots already:

\(\sqrt{1} = 1\)
\(\sqrt{4} = 2\)

So we know that \(\sqrt{2}\) is BETWEEN 1 and 2. This question asks us to subtract 2 from \(\sqrt{2}\), so we're ultimately looking for an answer that is between -1 and 0... There's only one answer that fits...

Final Answer:

GMAT assassins aren't born, they're made,
Rich
_________________

760+: Learn What GMAT Assassins Do to Score at the Highest Levels
Contact Rich at: Rich.C@empowergmat.com

Rich Cohen

Co-Founder & GMAT Assassin

Special Offer: Save $75 + GMAT Club Tests Free
  Official GMAT Exam Packs + 70 Pt. Improvement Guarantee
www.empowergmat.com/

***********************Select EMPOWERgmat Courses now include ALL 6 Official GMAC CATs!***********************

Re: In sequence S, all odd numbered terms are equal and all even numbered   [#permalink] 17 May 2017, 13:53
Display posts from previous: Sort by

In sequence S, all odd numbered terms are equal and all even numbered

  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®.