Last visit was: 22 Apr 2026, 12:08 It is currently 22 Apr 2026, 12:08
Home
Messages
Tests
Schools
Events
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.
Go to My Error Log Learn more
Close
Request Expert Reply
Confirm Cancel
Back to Forum
Create Topic
User avatar
Bunuel
User avatar
Math Expert
Joined: 02 Sep 2009
Last visit: 22 Apr 2026
Posts: 109,752
Own Kudos:
810,649
 [14]
Given Kudos: 105,822
Products:
GMAT Club Tests Forum Quiz
Expert
Expert reply
Active GMAT Club Expert! Tag them with @ followed by their username for a faster response.
Posts: 109,752
Kudos: 810,649
 [14]
A bar above a digit in a decimal indicates an infinitely repeating dec 07 Sep 2021, 04:00
1
Kudos
Add Kudos
12
Bookmarks
Bookmark this Post
00:00
Start Timer
Pause Timer
Resume Timer
Show Answer
Hide
Show
History
D
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!

Difficulty:

65% (hard)

Question Stats:

60% (02:04) correct 40% (02:04) wrong based on 518 sessions

History

Date
Time
Result
Not Attempted Yet
A bar above a digit in a decimal indicates an infinitely repeating decimal. \(333,333.\overline {3}*(10^{–3} – 10^{–5})\) =


A. \(3,333.\overline {3}\)

B. \(3,330\)

C. \(333.\overline {3}\)

D. \(330\)

E. \(0\)
ShowHide Answer
Official Answer
D
Most Helpful Reply
User avatar
BrentGMATPrepNow
User avatar
Major Poster
Joined: 12 Sep 2015
Last visit: 31 Oct 2025
Posts: 6,733
Own Kudos:
36,443
 [5]
Given Kudos: 799
Location: Canada
Expert
Expert reply
Posts: 6,733
Kudos: 36,443
 [5]
A bar above a digit in a decimal indicates an infinitely repeating dec 15 Sep 2021, 13:04
5
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Bunuel
A bar above a digit in a decimal indicates an infinitely repeating decimal. \(333,333.\overline {3}*(10^{–3} – 10^{–5})\) =


A. \(3,333.\overline {3}\)

B. \(3,330\)

C. \(333.\overline {3}\)

D. \(330\)

E. \(0\)
Show more

Key properties:
Multiplying number K by \(10^n\) (where n is positive) moves the decimal place to the RIGHT n spaces.
Multiplying number K by \(10^{-n}\) (where n is positive) moves the decimal place to the LEFT n spaces.

Some examples:
\(1234.567 * 10^{-2} = 12.34567\)
\(123456.7 * 10^{-5} = 1.234567\)
\(8,888,888.\overline {8} * 10^{-4} = 888.\overline {8}\)

Now onto the question!!

We get: \(333,333.\overline {3}*(10^{–3} – 10^{–5}) = 333.\overline {3} - 3.\overline {3}=330\)

Answer: D
General Discussion
User avatar
yashikaaggarwal
User avatar
Senior Moderator - Masters Forum
Joined: 19 Jan 2020
Last visit: 29 Mar 2026
Posts: 3,089
Own Kudos:
3,158
 [1]
Given Kudos: 1,510
Location: India
Schools: Cranfield (A) Warwick MiM "23 (M)
GPA: 4
WE:Analyst (Internet and New Media)
Schools: Cranfield (A) Warwick MiM "23 (M)
Posts: 3,089
Kudos: 3,158
 [1]
A bar above a digit in a decimal indicates an infinitely repeating dec 15 Sep 2021, 10:20
Kudos
Add Kudos
1
Bookmarks
Bookmark this Post
Simply solve bracket.
(10^-3-10^-5)
= (99/100,000)
Now,
=> 333,333.33*99/100,000
=> 333.33*99
Which is surely slightly less than 333.33
Hence
D is the approximate answer.

Posted from my mobile device
User avatar
Pritishd
User avatar
UNC Kenan Flagler Moderator
Joined: 18 Jul 2015
Last visit: 05 Jul 2025
Posts: 230
Own Kudos:
313
Given Kudos: 120
GMAT 1: 530 Q43 V20
WE:Analyst (Consumer Packaged Goods)
GMAT 1: 530 Q43 V20
Posts: 230
Kudos: 313
A bar above a digit in a decimal indicates an infinitely repeating dec 23 Sep 2021, 08:39
Kudos
Add Kudos
Bookmarks
Bookmark this Post
yashikaaggarwal
Simply solve bracket.
(10^-3-10^-5)
= (99/100,000)
Now,
=> 333,333.33*99/100,000
=> 333.33*99
Which is surely slightly less than 333.33
Hence
D is the approximate answer.

Posted from my mobile device
Show more

I see an issue within the yellow highlighted portions

1. \(333,333.33 * \frac{99 }{ 100,000}\) will give us \(3.33 * 99\) and not \(333.33\)

2. Plus, \(333.33 * 99\) equals ~ \(33,000\) which is not less than \(333.33\)
User avatar
Bunuel
User avatar
Math Expert
Joined: 02 Sep 2009
Last visit: 22 Apr 2026
Posts: 109,752
Own Kudos:
810,649
Given Kudos: 105,822
Products:
GMAT Club Tests Forum Quiz
Expert
Expert reply
Active GMAT Club Expert! Tag them with @ followed by their username for a faster response.
Posts: 109,752
Kudos: 810,649
A bar above a digit in a decimal indicates an infinitely repeating dec 03 Nov 2021, 07:57
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Bunuel
A bar above a digit in a decimal indicates an infinitely repeating decimal. \(333,333.\overline {3}*(10^{–3} – 10^{–5})\) =


A. \(3,333.\overline {3}\)

B. \(3,330\)

C. \(333.\overline {3}\)

D. \(330\)

E. \(0\)
Show more



This question is a part of Are You Up For the Challenge: 700 Level Questions collection.
User avatar
CEO2021
User avatar
Joined: 13 Feb 2020
Last visit: 16 Apr 2026
Posts: 50
Own Kudos:
18
Given Kudos: 10
Posts: 50
Kudos: 18
A bar above a digit in a decimal indicates an infinitely repeating dec 09 Mar 2022, 02:56
Kudos
Add Kudos
Bookmarks
Bookmark this Post
BrentGMATPrepNow
Bunuel
A bar above a digit in a decimal indicates an infinitely repeating decimal. \(333,333.\overline {3}*(10^{–3} – 10^{–5})\) =


A. \(3,333.\overline {3}\)

B. \(3,330\)

C. \(333.\overline {3}\)

D. \(330\)

E. \(0\)

Key properties:
Multiplying number K by \(10^n\) (where n is positive) moves the decimal place to the RIGHT n spaces.
Multiplying number K by \(10^{-n}\) (where n is positive) moves the decimal place to the LEFT n spaces.

Some examples:
\(1234.567 * 10^{-2} = 12.34567\)
\(123456.7 * 10^{-5} = 1.234567\)
\(8,888,888.\overline {8} * 10^{-4} = 888.\overline {8}\)

Now onto the question!!

We get: \(333,333.\overline {3}*(10^{–3} – 10^{–5}) = 333.\overline {3} - 3.\overline {3}=330\)

Answer: D
Show more

BrentGMATPrepNow

Sir
Please help me understanding above part - 3.\overline {3}=330[/m]

thx
User avatar
BrentGMATPrepNow
User avatar
Major Poster
Joined: 12 Sep 2015
Last visit: 31 Oct 2025
Posts: 6,733
Own Kudos:
36,443
Given Kudos: 799
Location: Canada
Expert
Expert reply
Posts: 6,733
Kudos: 36,443
A bar above a digit in a decimal indicates an infinitely repeating dec 09 Mar 2022, 07:28
Kudos
Add Kudos
Bookmarks
Bookmark this Post
CEO2021
BrentGMATPrepNow
Bunuel
A bar above a digit in a decimal indicates an infinitely repeating decimal. \(333,333.\overline {3}*(10^{–3} – 10^{–5})\) =


A. \(3,333.\overline {3}\)

B. \(3,330\)

C. \(333.\overline {3}\)

D. \(330\)

E. \(0\)

Key properties:
Multiplying number K by \(10^n\) (where n is positive) moves the decimal place to the RIGHT n spaces.
Multiplying number K by \(10^{-n}\) (where n is positive) moves the decimal place to the LEFT n spaces.

Some examples:
\(1234.567 * 10^{-2} = 12.34567\)
\(123456.7 * 10^{-5} = 1.234567\)
\(8,888,888.\overline {8} * 10^{-4} = 888.\overline {8}\)

Now onto the question!!

We get: \(333,333.\overline {3}*(10^{–3} – 10^{–5}) = 333.\overline {3} - 3.\overline {3}=330\)

ORIGINAL: We get: \(333,333.\overline {3}*(10^{–3} – 10^{–5}) = 333.\overline {3} - 3.\overline {3}=330\)

Answer: D

BrentGMATPrepNow

Sir
Please help me understanding above part - 3.\overline {3}=330[/m]

thx
Show more

We want to calculate the value of \(333.\overline {3} - 3.\overline {3}\)

Important: Notice that both numbers have infinitely many 3's after the decimal place.
So, we COULD rewrite the expression as follows: \(333.333333333333333.... - 3.333333333333333....\), at which point all of the 3's after decimal place cancel out to get 330

Here's another way to look at it:
We know that \(\frac{1}{3} = 0.\overline {3}\)

So we can take \(333.\overline {3} - 3.\overline {3}\) and rewrite it as \(333 \frac{1}{3} - 3 \frac{1}{3}\), which simplifies to be \(330\)

Does that help?
User avatar
bumpbot
User avatar
Non-Human User
Joined: 09 Sep 2013
Last visit: 04 Jan 2021
Posts: 38,966
Own Kudos:
1,117
Posts: 38,966
Kudos: 1,117
A bar above a digit in a decimal indicates an infinitely repeating dec 03 Nov 2025, 05:45
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Automated notice from GMAT Club BumpBot:

A member just gave Kudos to this thread, showing it’s still useful. I’ve bumped it to the top so more people can benefit. Feel free to add your own questions or solutions.

This post was generated automatically.
Moderators:
Bunuel
Math Expert
109751 posts
Krunaal
Tuck School Moderator
853 posts