Discuss Forum
1. 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 ?
- A. 5%
- B. 5%
- C. 5%
- D. 5%
Answer: Option D
Explanation:
Eng. male = 120×.25 = 30
Eng.female = 100×.20 = 20
Total eng. student = 30 + 20 = 50
Eng.male passed = 30×.20 = 6
Eng female passed = 20×.25 = 5
So, percentage passed = (6 + 5)/50×100% = 22%
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