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All of the 120 seniors in Coolidge High School are members of the che

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Math Expert
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Joined: 02 Sep 2009
Posts: 56257
All of the 120 seniors in Coolidge High School are members of the che  [#permalink]

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New post 21 Feb 2018, 23:01
2
00:00
A
B
C
D
E

Difficulty:

  15% (low)

Question Stats:

94% (00:54) correct 6% (01:30) wrong based on 51 sessions

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Retired Moderator
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Joined: 07 Jan 2016
Posts: 1090
Location: India
GMAT 1: 710 Q49 V36
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Re: All of the 120 seniors in Coolidge High School are members of the che  [#permalink]

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New post 21 Feb 2018, 23:39
Bunuel wrote:
All of the 120 seniors in Coolidge High School are members of the chess club, the pep club, or both. If 90 seniors are in the pep club and 70 seniors are in the chess club, how many seniors are in both clubs?

(A) 10

(B) 20

(C) 30

(D) 40

(E) 50



students = 120

pep = 90
chess= 70

both = pep + chess - students = 90+70 - 120 = 40

(D) imo
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All of the 120 seniors in Coolidge High School are members of the che  [#permalink]

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New post 23 Feb 2018, 00:11
Bunuel wrote:
All of the 120 seniors in Coolidge High School are members of the chess club, the pep club, or both. If 90 seniors are in the pep club and 70 seniors are in the chess club, how many seniors are in both clubs?

(A) 10

(B) 20

(C) 30

(D) 40

(E) 50

IMO D
table attached bellow
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GMAT Club Bot
All of the 120 seniors in Coolidge High School are members of the che   [#permalink] 23 Feb 2018, 00:11
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All of the 120 seniors in Coolidge High School are members of the che

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