In a class, 120 students are male and 100 students are female 25% of the male students and 20% of the female students are engineering students. 20% of the male engineering students and 25% of the female engineering students passed the final exam, what percentage of engineering students passed the exam?
Solution
Correct Answer: Option D
male engineering student = 25*120/100 = 30
female engineering student = 20*100/100 = 20
total engineering student = 30 + 20 = 50
now,
male engineering students that passed = 20*30/100 = 6
female engineering students that passed = 25*20/100 = 5
total students that passed = 6 + 5 = 11
now,
percentage of engineering students that passed the exam = 11*100/50 = 22%
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