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

It is currently 15 Oct 2019, 19:19

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

If r, s, t, and u are distinct, consecutive prime integers less than 3

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

Hide Tags

Find Similar Topics 
Math Expert
User avatar
V
Joined: 02 Sep 2009
Posts: 58340
If r, s, t, and u are distinct, consecutive prime integers less than 3  [#permalink]

Show Tags

New post 08 Feb 2019, 04:43
00:00
A
B
C
D
E

Difficulty:

  65% (hard)

Question Stats:

46% (02:03) correct 54% (02:25) wrong based on 35 sessions

HideShow timer Statistics

Director
Director
avatar
G
Joined: 09 Mar 2018
Posts: 996
Location: India
Re: If r, s, t, and u are distinct, consecutive prime integers less than 3  [#permalink]

Show Tags

New post 08 Feb 2019, 04:54
Bunuel wrote:
If r, s, t, and u are distinct, consecutive prime integers less than 31, then which of the following could be the average (arithmetic mean) of r, s, t, and u ?

I. 4.25
II. 9
III. 22

A. I only
B. I and II only
C. I and III only
D. II and III only
E. I, II and III


Key word: r, s, t, and u are distinct, consecutive prime integers less than 31

S1 = 17/4 = 4.25
2,3,5,7

S2 = 36/4 = 9
5,7,11,13

S3 = 88/4 = 22
17,19,23,29

E
_________________
If you notice any discrepancy in my reasoning, please let me know. Lets improve together.

Quote which i can relate to.
Many of life's failures happen with people who do not realize how close they were to success when they gave up.
VP
VP
User avatar
D
Joined: 31 Oct 2013
Posts: 1471
Concentration: Accounting, Finance
GPA: 3.68
WE: Analyst (Accounting)
CAT Tests
If r, s, t, and u are distinct, consecutive prime integers less than 3  [#permalink]

Show Tags

New post 08 Feb 2019, 05:05
Bunuel wrote:
If r, s, t, and u are distinct, consecutive prime integers less than 31, then which of the following could be the average (arithmetic mean) of r, s, t, and u ?

I. 4.25
II. 9
III. 22

A. I only
B. I and II only
C. I and III only
D. II and III only
E. I, II and III



Nice question

primes less than 31.

2-3-5-7-11-13-17-19-23-29.

1) 2 + 3 + 5 + 7 = 17.

17 / 4 = 4.26.

2) 5 + 7 + 11 + 13 =36

36 / 4 = 9.

3) 17 + 19 + 23 + 29 =88

88/4 = 22.

E is the correct answer.
Intern
Intern
avatar
B
Joined: 25 Jan 2019
Posts: 4
Re: If r, s, t, and u are distinct, consecutive prime integers less than 3  [#permalink]

Show Tags

New post 09 Feb 2019, 06:34
Bunuel Is there any other better approach to solve this question?
GMAT Club Bot
Re: If r, s, t, and u are distinct, consecutive prime integers less than 3   [#permalink] 09 Feb 2019, 06:34
Display posts from previous: Sort by

If r, s, t, and u are distinct, consecutive prime integers less than 3

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





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