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21 Feb 2018, 23:01
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D
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Difficulty:
5%
(low)
Question Stats:
89% (00:55) correct
11%
(01:32)
wrong
based on 82
sessions
History
Date
Time
Result
Not Attempted Yet
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
(A) 10
(B) 20
(C) 30
(D) 40
(E) 50
21 Feb 2018, 23:39
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Bunuel
students = 120
pep = 90
chess= 70
both = pep + chess - students = 90+70 - 120 = 40
(D) imo
23 Feb 2018, 00:11
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Bunuel
IMO D
table attached bellow
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