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# stuck on an easy ques.

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Director
Joined: 25 Oct 2008
Posts: 593

Kudos [?]: 1137 [0], given: 100

Location: Kolkata,India
stuck on an easy ques. [#permalink]

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06 Jun 2009, 04:35
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If an integer n is divisible by both 6 and 8, then it must also be divisible by which of the following?

(A) 10

(B) 12

(C) 14

(D) 16

(E) 18

OA:B
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http://gmatclub.com/forum/countdown-beginshas-ended-85483-40.html#p649902

Kudos [?]: 1137 [0], given: 100

Manager
Joined: 12 Apr 2006
Posts: 213

Kudos [?]: 30 [0], given: 17

Location: India
Re: stuck on an easy ques. [#permalink]

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06 Jun 2009, 09:33
Primes of 6 = 2, 3
Primes of 8 = 2, 2, 2

Set of primes available (2, 2, 2, 3)

(A) 10 = 5, 2 Not is set
(B) 12 = 2, 2, 3 In set, hence correct.
(C) 14 = 2, 7 Not in set
(D) 16 = 2, 2, 2, 2 Extra 2 not in set
(E) 18 = 3, 3, 2 Extra 3 not in set

Kudos [?]: 30 [0], given: 17

Re: stuck on an easy ques.   [#permalink] 06 Jun 2009, 09:33
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