Last visit was: 24 Apr 2026, 07:53 It is currently 24 Apr 2026, 07:53
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: 24 Apr 2026
Posts: 109,814
Own Kudos:
Given Kudos: 105,871
Products:
Expert
Expert reply
Active GMAT Club Expert! Tag them with @ followed by their username for a faster response.
Posts: 109,814
Kudos: 811,009
Kudos
Add Kudos
Bookmarks
Bookmark this Post
User avatar
KSBGC
Joined: 31 Oct 2013
Last visit: 10 Mar 2022
Posts: 1,240
Own Kudos:
Given Kudos: 635
Concentration: Accounting, Finance
GPA: 3.68
WE:Analyst (Accounting)
Posts: 1,240
Kudos: 1,509
Kudos
Add Kudos
Bookmarks
Bookmark this Post
User avatar
GMATinsight
User avatar
Major Poster
Joined: 08 Jul 2010
Last visit: 24 Apr 2026
Posts: 6,977
Own Kudos:
Given Kudos: 128
Status:GMAT/GRE Tutor l Admission Consultant l On-Demand Course creator
Location: India
GMAT: QUANT+DI EXPERT
Schools: IIM (A) ISB '24
GMAT 1: 750 Q51 V41
WE:Education (Education)
Products:
Expert
Expert reply
Schools: IIM (A) ISB '24
GMAT 1: 750 Q51 V41
Posts: 6,977
Kudos: 16,914
Kudos
Add Kudos
Bookmarks
Bookmark this Post
User avatar
Archit3110
User avatar
Major Poster
Joined: 18 Aug 2017
Last visit: 24 Apr 2026
Posts: 8,629
Own Kudos:
Given Kudos: 243
Status:You learn more from failure than from success.
Location: India
Concentration: Sustainability, Marketing
GMAT Focus 1: 545 Q79 V79 DI73
GMAT Focus 2: 645 Q83 V82 DI81
GPA: 4
WE:Marketing (Energy)
Products:
GMAT Focus 2: 645 Q83 V82 DI81
Posts: 8,629
Kudos: 5,190
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Bunuel
When Dahlia’s professor eliminated the lowest of her 4 quiz scores, her quiz average rose from 77 to 91. What was the score of the quiz that the professor eliminated?

A. 14

B. 21

C. 35

D. 42

E. 56

sum of 4 quiz scores= 4*77 ; 308
sum of 3 quiz scores= 91*3; 273
eliminated quiz score = 308-273; 35
IMO C
User avatar
Mo2men
Joined: 26 Mar 2013
Last visit: 09 May 2023
Posts: 2,426
Own Kudos:
Given Kudos: 641
Concentration: Operations, Strategy
Schools: Erasmus (II)
Products:
Schools: Erasmus (II)
Posts: 2,426
Kudos: 1,508
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Bunuel
When Dahlia’s professor eliminated the lowest of her 4 quiz scores, her quiz average rose from 77 to 91. What was the score of the quiz that the professor eliminated?

A. 14

B. 21

C. 35

D. 42

E. 56

No need to long calculations. Use the power of unit digit, when scanning the answer choices.

sum of 4 tests = 4 * 77 = ..8

sum of 3 tests = 3 * 91 = ..3

Subtracting will yield the lowest score.

lowest test = ..8 - ..3=..5

Only one answer fits with unit digit 5

Answer: C
User avatar
ScottTargetTestPrep
User avatar
Target Test Prep Representative
Joined: 14 Oct 2015
Last visit: 23 Apr 2026
Posts: 22,283
Own Kudos:
Given Kudos: 302
Status:Founder & CEO
Affiliations: Target Test Prep
Location: United States (CA)
Expert
Expert reply
Active GMAT Club Expert! Tag them with @ followed by their username for a faster response.
Posts: 22,283
Kudos: 26,534
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Bunuel
When Dahlia’s professor eliminated the lowest of her 4 quiz scores, her quiz average rose from 77 to 91. What was the score of the quiz that the professor eliminated?

A. 14

B. 21

C. 35

D. 42

E. 56


Since the original average was 77, the sum of all test scores was 77 x 4 = 308.

Thus, after eliminating the lowest quiz score, n, we have:

91 = (308 - n)/3

273 = 308 - n

n = 35

Answer: C
Moderators:
Math Expert
109814 posts
Tuck School Moderator
853 posts