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18 Apr 2022, 22:54
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C
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
35%
(medium)
Question Stats:
74% (01:52) correct
26%
(02:08)
wrong
based on 229
sessions
History
Date
Time
Result
Not Attempted Yet
In a certain group of 55 truly disturbed people, 22 people wear Crocs, 18 pull the wings off of flies, and 32 people root for the Yankees. If each of the 55 people does at least one activity and three people do all three, how many of them do exactly two activities?
(A) 3
(B) 8
(C) 11
(D) 14
(E) 17
(A) 3
(B) 8
(C) 11
(D) 14
(E) 17
PyjamaScientist
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Joined: 25 Oct 2020
Last visit: 04 Apr 2026
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GMAT 1: 740 Q49 V42 (Online)
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18 Apr 2022, 23:11
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Though Harry advised to use double matrix during the discussion of this question on 24 hr marathon, I still feel comfortable with using Venn diagrams. I do not remember any formulas, you don't have to actually, if you understand what all you have and what is it that you need to find. If you understand that part, then it becomes just subtracting some areas from other and compensating for extra subtractions in your areas.
Also, I've still have no idea why Yankee fans are considered "disturbed" here. Lol.
Posted from my mobile device
Also, I've still have no idea why Yankee fans are considered "disturbed" here. Lol.
Posted from my mobile device
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17 Jan 2024, 01:44
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PyjamaScientist
can you do it using the formula please!
