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02 Sep 2021, 03:16
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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:
15%
(low)
Question Stats:
83% (00:39) correct
17%
(01:22)
wrong
based on 65
sessions
History
Date
Time
Result
Not Attempted Yet
Of the 400 people in an auditorium, 1/4 are wearing hats. Of those, 1/5 are wearing fedoras. How many people in the auditorium are not wearing fedoras?
A. 20
B. 80
C. 180
D. 220
E. 380
A. 20
B. 80
C. 180
D. 220
E. 380
# people wearing hat = \(400*\frac{1}{4}\) = 100
=> #people wearing Fedoras = \(\frac{1}{5} * 100\) = 20
=> # people in the auditorium not wearing Fedoras = 400 - 20 = 380
OA should be E
=> #people wearing Fedoras = \(\frac{1}{5} * 100\) = 20
=> # people in the auditorium not wearing Fedoras = 400 - 20 = 380
OA should be E
rocky620
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02 Sep 2021, 11:22
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People not wearing fedoras = 400 - \(400*\frac{1}{4}*\frac{1}{5} \)= 400-20 = 380
Option E
Option E
