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If 75 percent of a class answered the first question on a certain test
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24 Nov 2022, 11:10
24 Nov 2022, 11:10
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Question Stats:
53% (01:04) correct
46% (01:40) wrong based on 13 sessions
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If 75 percent of a class answered the first question on a certain test correctly, 55 percent answered the second question on the test correctly, and 20 percent answered neither of the questions correctly, what percent answered both correctly?
(A) 10%
(8) 20%
(C) 30%
(D) 50%
(E) 65%
(A) 10%
(8) 20%
(C) 30%
(D) 50%
(E) 65%
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Re: If 75 percent of a class answered the first question on a certain test
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26 Nov 2022, 01:40
26 Nov 2022, 01:40
1
Expert Reply
Total = First + Second - Both + Neither
100% = 75% + 55% - Both + 20% --> Both = 50%.
Answer: D.
100% = 75% + 55% - Both + 20% --> Both = 50%.
Answer: D.
Re: If 75 percent of a class answered the first question on a certain test
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06 Jun 2024, 22:46
06 Jun 2024, 22:46
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Thanks to another GRE Prep Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).
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