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How many members are in the photography club? (1) If the photography c

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How many members are in the photography club? (1) If the photography c [#permalink]

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New post 13 Apr 2018, 02:01
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How many members are in the photography club?

(1) If the photography club doubles its membership, it will have at least 34 members.
(2) If the photography club loses 5 members, it will have fewer than 13 members.
[Reveal] Spoiler: OA

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Joined: 28 Apr 2014
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Re: How many members are in the photography club? (1) If the photography c [#permalink]

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New post 13 Apr 2018, 02:06
imo C

St1 at least 34 members means club can have more members also
insufficient

St2 less than 13 members can also give multiple values

Combining
34/2= 17 17-5=12 valid
36/2=18 18-5=13 invalid

Unique answer hence C
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Re: How many members are in the photography club? (1) If the photography c [#permalink]

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New post 13 Apr 2018, 02:07
Bunuel wrote:
How many members are in the photography club?

(1) If the photography club doubles its membership, it will have at least 34 members.
(2) If the photography club loses 5 members, it will have fewer than 13 members.


Let the photography club currently have X members. X is an integer!

(1) 2X >= 34 .... X >= 17 Insuff

(2) X - 5 <= 12 ( fewer than 13 means at most 12) ... X <= 17Insuff

(1) + (2) : X >=17 & X <= 17. Therefore X = 17 Hence sufficient!

Option (C) is our answer.

Best,
Gladi
Re: How many members are in the photography club? (1) If the photography c   [#permalink] 13 Apr 2018, 02:07
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