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08 Jan 2014, 07:07
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E
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
5%
(low)
Question Stats:
92% (01:25) correct
8%
(01:26)
wrong
based on 1614
sessions
History
Date
Time
Result
Not Attempted Yet
In a poll of 66,000 physicians, only 20 percent responded; of these, 10 percent disclosed their preference for pain reliever X. How many of the physicians who responded did not disclose a preference for pain reliever X?
(A) 1.320
(B) 5,280
(C) 6,600
(D) 10,560
(E) 11,880
(A) 1.320
(B) 5,280
(C) 6,600
(D) 10,560
(E) 11,880
08 Jan 2014, 07:07
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SOLUTION
In a poll of 66,000 physicians, only 20 percent responded; of these, 10 percent disclosed their preference for pain reliever X. How many of the physicians who responded did not disclose a preference for pain reliever X?
(A) 1.320
(B) 5,280
(C) 6,600
(D) 10,560
(E) 11,880
The # of physicians responded = 0.2*66,000 = 13,200.
Of these, 10 percent disclosed their preference for pain reliever X --> 1,320 disclosed, thus 13,200 - 1,320 = 11,880 did not.
Answer: E.
In a poll of 66,000 physicians, only 20 percent responded; of these, 10 percent disclosed their preference for pain reliever X. How many of the physicians who responded did not disclose a preference for pain reliever X?
(A) 1.320
(B) 5,280
(C) 6,600
(D) 10,560
(E) 11,880
The # of physicians responded = 0.2*66,000 = 13,200.
Of these, 10 percent disclosed their preference for pain reliever X --> 1,320 disclosed, thus 13,200 - 1,320 = 11,880 did not.
Answer: E.
08 Jan 2014, 21:29
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Responded = (1/5)*66000 = 13,200.
No. of physicians who did not disclose = (.9) * 13,200 = 11,880
Ans is (E).
No. of physicians who did not disclose = (.9) * 13,200 = 11,880
Ans is (E).
