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?
Explanation: 120 জন male student এর \(25\%=30\) জন। 100 জন female student এর \(20\%=20\) জন। 30 জনের \(20\%=6\) জন male student passed. 20 জনের \(25\%=4\) জন female student passed. Total engineering students = \(30+20=50\) জন। Total number of engineering passed student = \(6+4=10\) জন। Percentage of passed student = \((10/50) \times 100 = 20\). সঠিক Answer (E)
