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

It is currently 18 Aug 2019, 02:52

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

Fourth term of an arithmetic progression is 8. What is the sum of the

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:

Hide Tags

Find Similar Topics 
Senior Manager
Senior Manager
avatar
D
Joined: 29 Nov 2018
Posts: 263
Concentration: Marketing, Strategy
Fourth term of an arithmetic progression is 8. What is the sum of the  [#permalink]

Show Tags

New post 19 Jul 2019, 06:13
00:00
A
B
C
D
E

Difficulty:

(N/A)

Question Stats:

67% (02:00) correct 33% (01:40) wrong based on 3 sessions

HideShow timer Statistics

Fourth term of an arithmetic progression is 8. What is the sum of the first 7 terms of the arithmetic progression?

(a) 7
(b) 64
(c) 56
(d) Cannot be determined
Director
Director
avatar
P
Joined: 20 Jul 2017
Posts: 633
Location: India
Concentration: Entrepreneurship, Marketing
WE: Education (Education)
Re: Fourth term of an arithmetic progression is 8. What is the sum of the  [#permalink]

Show Tags

New post 20 Jul 2019, 22:08
cfc198 wrote:
Fourth term of an arithmetic progression is 8. What is the sum of the first 7 terms of the arithmetic progression?

(a) 7
(b) 64
(c) 56
(d) Cannot be determined


Fourth term of an arithmetic progression is 8
--> a + 3d = 8 ....... (1)

sum of the first n terms of the arithmetic progression = n/2(first term + last term)
--> Sum of first 7 terms = 7/2{a + (a + 6d)}
= 7/2{2a + 6d}
= 7(a + 3d)
= 7*8
= 56

IMO Option C

Pls Hit Kudos if you like the solution
GMAT Club Bot
Re: Fourth term of an arithmetic progression is 8. What is the sum of the   [#permalink] 20 Jul 2019, 22:08
Display posts from previous: Sort by

Fourth term of an arithmetic progression is 8. What is the sum of the

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  

Moderator: cfc198






Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne