In College X in the United States, there are 200 students in a class, of which 80 are female. If 10% of the class consists of female non-American students and 3/5th of the class are American students, how many of the students in the class are male American students?
A. 20
B. 40
C. 60
D. 80
E. 120
Answer: C
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In College X in the United States, there are 200 students in a class, of which 80 are female.
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Gmat_mission
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Solution:Gmat_mission wrote: ↑Sun Jan 17, 2021 10:51 amIn College X in the United States, there are 200 students in a class, of which 80 are female. If 10% of the class consists of female non-American students and 3/5th of the class are American students, how many of the students in the class are male American students?
A. 20
B. 40
C. 60
D. 80
E. 120
Answer: C
We see that there are 80 female students in the class and hence, there are 200 - 80 = 120 male students. Furthermore, we see that 200 x 0.1 = 20 students are female non-American students and 200 x 3/5 = 120 students are American students. Therefore, there must be 200 - 20 - 120 = 60 male non-American students and hence there are 120 - 60 = 60 male American students.
Answer: C
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