Last visit was: 22 Apr 2026, 20:29 It is currently 22 Apr 2026, 20:29
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
User avatar
Bunuel
User avatar
Math Expert
Joined: 02 Sep 2009
Last visit: 22 Apr 2026
Posts: 109,754
Own Kudos:
Given Kudos: 105,823
Products:
Expert
Expert reply
Active GMAT Club Expert! Tag them with @ followed by their username for a faster response.
Posts: 109,754
Kudos: 810,684
 [18]
2
Kudos
Add Kudos
16
Bookmarks
Bookmark this Post
avatar
Enderwiggin17
Joined: 09 Jan 2015
Last visit: 25 May 2015
Posts: 7
Own Kudos:
6
 [2]
Given Kudos: 4
Posts: 7
Kudos: 6
 [2]
2
Kudos
Add Kudos
Bookmarks
Bookmark this Post
User avatar
akhilbajaj
Joined: 09 Jan 2013
Last visit: 30 Oct 2016
Posts: 54
Own Kudos:
331
 [4]
Given Kudos: 185
Concentration: Entrepreneurship, Sustainability
GMAT 1: 650 Q45 V34
GMAT 2: 740 Q51 V39
GRE 1: Q790 V650
GPA: 3.76
WE:Other (Pharmaceuticals and Biotech)
Products:
GMAT 2: 740 Q51 V39
GRE 1: Q790 V650
Posts: 54
Kudos: 331
 [4]
4
Kudos
Add Kudos
Bookmarks
Bookmark this Post
User avatar
KS15
Joined: 21 May 2013
Last visit: 25 Jul 2019
Posts: 531
Own Kudos:
259
 [3]
Given Kudos: 608
Posts: 531
Kudos: 259
 [3]
3
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Bunuel
What is the value of 81,918/(10^5 - 10^2)

(A) 8.19
(B) 8.02
(C) 0.89
(D) 0.82
(E) 0.81

Kudos for a correct solution.
81918/10^2(10^3-1)
81918/999*10^2
82/10^2
0.82
Answer D
User avatar
Bunuel
User avatar
Math Expert
Joined: 02 Sep 2009
Last visit: 22 Apr 2026
Posts: 109,754
Own Kudos:
810,684
 [1]
Given Kudos: 105,823
Products:
Expert
Expert reply
Active GMAT Club Expert! Tag them with @ followed by their username for a faster response.
Posts: 109,754
Kudos: 810,684
 [1]
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Bunuel
What is the value of 81,918/(10^5 - 10^2)

(A) 8.19
(B) 8.02
(C) 0.89
(D) 0.82
(E) 0.81

Kudos for a correct solution.

MANHATTAN GMAT OFFICIAL SOLUTION:

10^2 is extremely small compared to 105, and the choices are somewhat spread out, so we can estimate:

81,918/(10^5 - 10^2) = 81,918/100,000 = 0.81918

Notice that by ignoring the 10^2 term, we made the denominator slightly larger than it originally was. Therefore 0.81918 is slightly lower than the correct answer. The correct answer is (D) 0.82.
User avatar
Abhishek009
User avatar
Board of Directors
Joined: 11 Jun 2011
Last visit: 17 Dec 2025
Posts: 5,904
Own Kudos:
Given Kudos: 463
Status:QA & VA Forum Moderator
Location: India
GPA: 3.5
WE:Business Development (Commercial Banking)
Posts: 5,904
Kudos: 5,450
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Bunuel
What is the value of 81,918/(10^5 - 10^2)

(A) 8.19
(B) 8.02
(C) 0.89
(D) 0.82
(E) 0.81

Kudos for a correct solution.

10^5 - 10^2 = 100000 - 100 => 99900

\(\frac{81918}{99900}\) = \(0.82\)

Hence, answer will be (D) 0.82
avatar
Vinayak Shenoy
Joined: 06 Jun 2016
Last visit: 27 Jun 2017
Posts: 225
Own Kudos:
Given Kudos: 212
Location: India
Concentration: Operations, Strategy
Schools: ISB '18 (D)
GMAT 1: 600 Q49 V23
GMAT 2: 680 Q49 V34
GPA: 3.9
Schools: ISB '18 (D)
GMAT 2: 680 Q49 V34
Posts: 225
Kudos: 117
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Bunuel
What is the value of 81,918/(10^5 - 10^2)

(A) 8.19
(B) 8.02
(C) 0.89
(D) 0.82
(E) 0.81

Kudos for a correct solution.

81918/(100000-1000)= 81918/99000==> 81.918/99==> 9.102/11==> 9/11 approx
0.0909*9= 0.8181 corresponds to 0.82 since 9.102 has been approximated to 9
D
User avatar
bumpbot
User avatar
Non-Human User
Joined: 09 Sep 2013
Last visit: 04 Jan 2021
Posts: 38,965
Own Kudos:
Posts: 38,965
Kudos: 1,117
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:
Math Expert
109754 posts
Tuck School Moderator
853 posts