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26 Jan 2017, 10:30
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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:
25%
(medium)
Question Stats:
84% (03:00) correct
16%
(03:24)
wrong
based on 157
sessions
History
Date
Time
Result
Not Attempted Yet
At Laurent Hills Elementary School 60% of the 2,000 students participate in after school sporting activities. The number of female students who do not participate in the sporting activities is half the number of male students who do participate in the activities. If the number of female students who do not participate in the activities is 3 times the number of male students who do not participate in the after school sporting activities, how many female students are in the school?
A. 2,000
B. 1,400
C. 1,200
D. 800
E. 600
A. 2,000
B. 1,400
C. 1,200
D. 800
E. 600
26 Jan 2017, 10:42
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Bunuel
Let the number of make students who participate = x
Number of students who participate in after-school sporting activities = 60% of 2000 = 1200
x/6 +x/2 = 800
=>x = 1200
Number of female students in school = 600
Answer E
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01 Mar 2021, 12:30
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60% of 2000 => 1200 students who participate
2000-1200 = 800 (students who do not participate)
let m=male students who do not participate and f=female students who do not participate
f+m=800
f=3*m(given)
therefore 4m=800=> m=200
f+200=800
f=600
2000-1200 = 800 (students who do not participate)
let m=male students who do not participate and f=female students who do not participate
f+m=800
f=3*m(given)
therefore 4m=800=> m=200
f+200=800
f=600
