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

 It is currently 17 Aug 2018, 12:34

### 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

# The graph above shows the distribution of test scores for a certain

Author Message
TAGS:

### Hide Tags

Math Expert
Joined: 02 Sep 2009
Posts: 47977
The graph above shows the distribution of test scores for a certain  [#permalink]

### Show Tags

31 Jan 2018, 07:28
00:00

Difficulty:

15% (low)

Question Stats:

88% (01:10) correct 12% (01:31) wrong based on 52 sessions

### HideShow timer Statistics

The graph above shows the distribution of test scores for a certain class. What was the average (arithmetic mean) score?

(A) 87

(B) 81

(C) 80

(D) 78

(E) 75

Attachment:

2018-01-31_1826.png [ 25.7 KiB | Viewed 756 times ]

_________________
Senior Manager
Joined: 17 Oct 2016
Posts: 325
Location: India
Concentration: Operations, Strategy
GPA: 3.73
WE: Design (Real Estate)
Re: The graph above shows the distribution of test scores for a certain  [#permalink]

### Show Tags

31 Jan 2018, 07:39
A

Total score = 5*70 + 20*80 + 10*90 + 15*100
= 4350

Total number of students = 5+20+10+15 =50

Average = 4350/50 = 87

Sent from my iPhone using GMAT Club Forum
_________________

Help with kudos if u found the post useful. Thanks

Manager
Joined: 27 Jul 2017
Posts: 52
Re: The graph above shows the distribution of test scores for a certain  [#permalink]

### Show Tags

10 Mar 2018, 20:28
Bunuel wrote:

The graph above shows the distribution of test scores for a certain class. What was the average (arithmetic mean) score?

(A) 87

(B) 81

(C) 80

(D) 78

(E) 75

Attachment:
2018-01-31_1826.png

I was able to answer the question by the conventional way as explained by Sasindran above and I also understand that since it is sub 600 level it got to have this type of calculation. I am just wondering if there are some other ways too to solve the question.
_________________

Ujjwal
Sharing is Gaining!

Senior Manager
Joined: 07 Jul 2012
Posts: 355
Location: India
Concentration: Finance, Accounting
GPA: 3.5
Re: The graph above shows the distribution of test scores for a certain  [#permalink]

### Show Tags

10 Mar 2018, 21:27
Total score = 5*70 + 20*80 + 10*90 + 15*100= 4350

Total number of students= 5+20+10+15 =50

Average= $$\frac{4350}{50}$$= 87

_________________

Kindly hit kudos if my post helps!

Re: The graph above shows the distribution of test scores for a certain &nbs [#permalink] 10 Mar 2018, 21:27
Display posts from previous: Sort by

# Events & Promotions

 Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.