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

 It is currently 17 Oct 2019, 19:02

### 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

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

# Aaron’s first three quiz scores were 75, 84, and 82. If his score on

Author Message
TAGS:

### Hide Tags

Math Expert
Joined: 02 Sep 2009
Posts: 58402
Aaron’s first three quiz scores were 75, 84, and 82. If his score on  [#permalink]

### Show Tags

18 Dec 2018, 00:06
00:00

Difficulty:

15% (low)

Question Stats:

92% (01:24) correct 8% (01:32) wrong based on 31 sessions

### HideShow timer Statistics

Aaron’s first three quiz scores were 75, 84, and 82. If his score on the fourth quiz reduced his average (arithmetic mean) quiz score to 74, what was his score on the fourth quiz?

A. 35
B. 40
C. 45
D. 50
E. 55

_________________
Intern
Joined: 04 Jun 2014
Posts: 14
Location: United States
GPA: 3.31
WE: Other (Military & Defense)
Re: Aaron’s first three quiz scores were 75, 84, and 82. If his score on  [#permalink]

### Show Tags

18 Dec 2018, 00:39
(75+84+82+x)/4=74

74x4=296

296=75+84+82+x
X+241=296
X=55

Average = (sum of individual scores/ # of scores)

Posted from my mobile device
VP
Joined: 31 Oct 2013
Posts: 1464
Concentration: Accounting, Finance
GPA: 3.68
WE: Analyst (Accounting)
Re: Aaron’s first three quiz scores were 75, 84, and 82. If his score on  [#permalink]

### Show Tags

18 Dec 2018, 03:42
Bunuel wrote:
Aaron’s first three quiz scores were 75, 84, and 82. If his score on the fourth quiz reduced his average (arithmetic mean) quiz score to 74, what was his score on the fourth quiz?

A. 35
B. 40
C. 45
D. 50
E. 55

Sum of the scores in 4 tests = 74*4 = 296

Sum of the scores of 3 tests = 75 + 84 +82 = 241.

Scores in 4th test = 396 - 241 = 55.

Board of Directors
Status: QA & VA Forum Moderator
Joined: 11 Jun 2011
Posts: 4776
Location: India
GPA: 3.5
Re: Aaron’s first three quiz scores were 75, 84, and 82. If his score on  [#permalink]

### Show Tags

18 Dec 2018, 08:27
Bunuel wrote:
Aaron’s first three quiz scores were 75, 84, and 82. If his score on the fourth quiz reduced his average (arithmetic mean) quiz score to 74, what was his score on the fourth quiz?

A. 35
B. 40
C. 45
D. 50
E. 55

$$75 + 84 +82 + s = 74*4$$

Or, $$s + 241 = 296$$

Thus, $$s = 55$$, Answer must be (E)
_________________
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 )
Re: Aaron’s first three quiz scores were 75, 84, and 82. If his score on   [#permalink] 18 Dec 2018, 08:27
Display posts from previous: Sort by