GMAT Question of the Day: Daily via email | Daily via Instagram New to GMAT Club? Watch this Video

It is currently 27 May 2020, 23:57

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 the closest to 11^59^5 – 2(10^5)?

  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: 8996
GMAT 1: 760 Q51 V42
GPA: 3.82
Which of the following is the closest to 11^59^5 – 2(10^5)?  [#permalink]

Show Tags

New post 05 Dec 2017, 01:02
1
3
00:00
A
B
C
D
E

Difficulty:

  55% (hard)

Question Stats:

55% (01:34) correct 45% (01:56) wrong based on 123 sessions

HideShow timer Statistics

[GMAT math practice question]

Which of the following is the closest to \(11^59^5 – 2(10^5)\)?

A. \(10^2\)
B. \(10^7\)
C. \(10^8\)
D. \(10^9\)
E. \(10^{10}\)

_________________
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"
Math Expert
avatar
V
Joined: 02 Aug 2009
Posts: 8601
Which of the following is the closest to 11^59^5 – 2(10^5)?  [#permalink]

Show Tags

New post 05 Dec 2017, 04:52
1
MathRevolution wrote:
[GMAT math practice question]

Which of the following is the closest to \(11^59^5 – 2(10^5)\)?

A. \(10^2\)
B. \(10^7\)
C. \(10^8\)
D. \(10^9\)
E. \(10^{10}\)



\(11^59^5 – 2(10^5) = 99^5-2*10^5\)

Now \(2*10^5\) is very small quantity in front of \(99^5\),( which is nearly equal to 100^5 = 10^{10})....
\(\frac{2*10^5}{10^{10}} = \frac{2}{10^5}=\frac{1}{50000}\),
Hence \(2*10^5\) is \(\frac{1}{50000}\) of \(100^5\), so can be neglected ..

hence answer is \(10^{10}\)

E
_________________
Retired Moderator
avatar
D
Joined: 25 Feb 2013
Posts: 1124
Location: India
GPA: 3.82
GMAT ToolKit User Reviews Badge
Which of the following is the closest to 11^59^5 – 2(10^5)?  [#permalink]

Show Tags

New post 05 Dec 2017, 11:14
2
2
MathRevolution wrote:
[GMAT math practice question]

Which of the following is the closest to \(11^59^5 – 2(10^5)\)?

A. \(10^2\)
B. \(10^7\)
C. \(10^8\)
D. \(10^9\)
E. \(10^{10}\)


As we have to find approximate answer so we can slightly reduce or increase the number to arrive at the closest value.

\(11^59^5 – 2(10^5)\), here I'll reduce \(11\) by \(1\) and increase \(9\) by \(1\), so in totality effect should balance out

\(11^59^5 – 2(10^5)\) \(=10^5*10^5 – 2*10^5\)

\(=>10^5(10^5 – 2)\). as \(10^5\) is far greater than \(2\) so \(10^5-2=10^5\) (approximate value)

\(=>10^5*10^5=10^{10}\)

Option E
Math Revolution GMAT Instructor
User avatar
V
Joined: 16 Aug 2015
Posts: 8996
GMAT 1: 760 Q51 V42
GPA: 3.82
Re: Which of the following is the closest to 11^59^5 – 2(10^5)?  [#permalink]

Show Tags

New post 07 Dec 2017, 00:02
=>

\(11^59^5 – 2(10^5)\)
\(≒ 10^510^5 – 2(10^5)\)
\(= 10^{10} – 2(10^5)\)
\(≒ 10^{10}\)

Therefore, the answer is E.

Answer: E
_________________
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"
Non-Human User
User avatar
Joined: 09 Sep 2013
Posts: 14992
Re: Which of the following is the closest to 11^59^5 – 2(10^5)?  [#permalink]

Show Tags

New post 06 Mar 2019, 18:47
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 the closest to 11^59^5 – 2(10^5)?   [#permalink] 06 Mar 2019, 18:47

Which of the following is the closest to 11^59^5 – 2(10^5)?

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





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