Consider a class of students with the following data: total students = 1000; students from State X = 200; students from State Y = 300. In addition, 40% of the students are female, of whom 50 are from State X and 180 are from State Y.
Suppose 40% of the students in the class are female. If there are 50 female students from State X and 180 from State Y, what is the number of female students from other states?
A170 ✓ Correct
B150
C130
D100
Correct answer: (A) 170
Explanation
Total female students are 40% of 1000 = 400; those from other states are 400 minus (50 plus 180) = 170. Hence option A.
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