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

It is currently 17 Oct 2019, 20:59

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

Which of the following is equal to (x+1)!/x!? A. x-1 B. 1+

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

Hide Tags

Find Similar Topics 
Math Revolution GMAT Instructor
User avatar
V
Joined: 16 Aug 2015
Posts: 8014
GMAT 1: 760 Q51 V42
GPA: 3.82
Which of the following is equal to (x+1)!/x!? A. x-1 B. 1+  [#permalink]

Show Tags

New post 23 Mar 2016, 18:55
1
1
00:00
A
B
C
D
E

Difficulty:

  5% (low)

Question Stats:

77% (00:29) correct 23% (00:39) wrong based on 164 sessions

HideShow timer Statistics

Which of the following is equal to (x+1)!/x!?

A. x-1
B. 1+(1/x)
C. 1
D. x+1
E. x


* A solution will be posted in two days.

_________________
MathRevolution: Finish GMAT Quant Section with 10 minutes to spare
The one-and-only World’s First Variable Approach for DS and IVY Approach for PS with ease, speed and accuracy.
"Only $79 for 1 month Online Course"
"Free Resources-30 day online access & Diagnostic Test"
"Unlimited Access to over 120 free video lessons - try it yourself"
Marshall & McDonough Moderator
User avatar
D
Joined: 13 Apr 2015
Posts: 1685
Location: India
GMAT ToolKit User
Re: Which of the following is equal to (x+1)!/x!? A. x-1 B. 1+  [#permalink]

Show Tags

New post 23 Mar 2016, 20:05
(x + 1)! = (x + 1) * x!
(x + 1)!/x! = x + 1

Answer: D
GMAT Club Legend
GMAT Club Legend
User avatar
V
Joined: 12 Sep 2015
Posts: 4007
Location: Canada
Re: Which of the following is equal to (x+1)!/x!? A. x-1 B. 1+  [#permalink]

Show Tags

New post 23 Mar 2016, 20:29
2
MathRevolution wrote:
Which of the following is equal to (x+1)!/x!?

A. x-1
B. 1+(1/x)
C. 1
D. x+1
E. x



(x+1)!/x! = (x+1)(x)(x-1)(x-2)...(2)(1)/(x)(x-1)(x-2)...(2)(1)
= x + 1
= D

Cheers,
Brent
_________________
Test confidently with gmatprepnow.com
Image
Manager
Manager
avatar
B
Joined: 04 May 2014
Posts: 151
Location: India
WE: Sales (Mutual Funds and Brokerage)
Which of the following is equal to (x+1)!/x!? A. x-1 B. 1+  [#permalink]

Show Tags

New post 23 Jun 2016, 18:43
Plugin
let x=20
(20+1)!/20!
21!/20!=21=20+1=x+1(Answer)
Board of Directors
User avatar
D
Status: QA & VA Forum Moderator
Joined: 11 Jun 2011
Posts: 4776
Location: India
GPA: 3.5
WE: Business Development (Commercial Banking)
GMAT ToolKit User
Which of the following is equal to (x+1)!/x!? A. x-1 B. 1+  [#permalink]

Show Tags

New post 24 Jun 2016, 23:23
gps5441 wrote:
Plugin
let x=20
(20+1)!/20!
21!/20!=21=20+1=x+1(Answer)


USe some smaller number you can do the calculations easily..

Let x = 2

\(\frac{(x+1)!}{x!}\) => \(\frac{3!}{2!}\) =\(\frac{6}{2}\) = \(3\)

So, the answer will be x + 1

Hope this helps...

_________________
Thanks and Regards

Abhishek....

PLEASE FOLLOW THE RULES FOR POSTING IN QA AND VA FORUM AND USE SEARCH FUNCTION BEFORE POSTING NEW QUESTIONS

How to use Search Function in GMAT Club | Rules for Posting in QA forum | Writing Mathematical Formulas |Rules for Posting in VA forum | Request Expert's Reply ( VA Forum Only )
Non-Human User
User avatar
Joined: 09 Sep 2013
Posts: 13240
Re: Which of the following is equal to (x+1)!/x!? A. x-1 B. 1+  [#permalink]

Show Tags

New post 01 Jan 2019, 19:10
Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
_________________
GMAT Club Bot
Re: Which of the following is equal to (x+1)!/x!? A. x-1 B. 1+   [#permalink] 01 Jan 2019, 19:10
Display posts from previous: Sort by

Which of the following is equal to (x+1)!/x!? A. x-1 B. 1+

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  





Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne