Find all School-related info fast with the new School-Specific MBA Forum

 It is currently 05 May 2015, 02:43

### 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

# Events & Promotions

###### Events & Promotions in June
Open Detailed Calendar

# In a sequence of 13 consecutive integers, all of which are

Author Message
TAGS:
Director
Joined: 14 Jan 2007
Posts: 780
Followers: 2

Kudos [?]: 71 [0], given: 0

In a sequence of 13 consecutive integers, all of which are [#permalink]  02 Jul 2007, 02:01
00:00

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions
In a sequence of 13 consecutive integers, all of which are less than 100, there are exactly 3 multiples of 6. How many integers in the sequence are prime?

(1) Both of the multiples of 5 in the sequence are also multiples of either 2 or 3.

(2) Only one of the two multiples of 7 in the sequence is not also a multiple of 2 or 3.
Senior Manager
Joined: 28 Feb 2007
Posts: 306
Followers: 1

Kudos [?]: 32 [0], given: 0

C. I think only ste of #s [6,7,8.......18] satisfies given constraints (1+2).
Manager
Joined: 14 Mar 2007
Posts: 238
Followers: 1

Kudos [?]: 1 [0], given: 0

how could be in a interval of 13 consecutive numbers 2 multiples of 5,3 and 2? there maybe something wrong with this question , no?
Director
Joined: 14 Jan 2007
Posts: 780
Followers: 2

Kudos [?]: 71 [0], given: 0

andrehaui wrote:
how could be in a interval of 13 consecutive numbers 2 multiples of 5,3 and 2? there maybe something wrong with this question , no?

Question is correct. Read it thoroughly.
Intern
Joined: 02 Jul 2007
Posts: 5
Followers: 0

Kudos [?]: 0 [0], given: 0

1) does not give us any new information

2) means that one of the following integers is part of the sequence: 7*5, 7*7, 7*11 or 7*13. If we take 7*5=35, there are two possible sequences in which 35 is included:
24 to 36
OR
30 to 42

In 24-36 there are two prime numbers (29, 31)
In 30-42 there are three prime numbers (31, 37, 41)

So 2) is insufficient.
Similar topics Replies Last post
Similar
Topics:
23 If M is a sequence of consecutive integers which contains 10 20 May 2012, 21:49
5 In a sequence of 13 consecutive integers, all of which are 11 18 May 2010, 07:31
2 In a sequence of 13 consecutive integers, all of which are 7 26 Oct 2006, 18:07
If a sequence of consecutive integers of increasing value 5 23 Oct 2006, 01:23
In a sequence of 13 consecutive integers, all of which are 7 18 Jun 2006, 21:58
Display posts from previous: Sort by