Question

In school, 60% of the number of students are boys and the rest are girls. If 20% of the number of boys failed and 65% of the number of girls passed the examination, then the percentage of the total number of students who passed is:

• A. 74
• B. 81
• C. 72
• D. 78

Answer 1

Answer:

A. 74

Let total number be students be 100 Number of boys = 100 × (60/100) = 60 Number of girls = 100 – 60 = 40 Number of passed boys = 60 × (80/100) = 48 Number of passed girls = 40 × (65/100) = 26 Total passed students = 48 + 26 = 74 Required percentage = (74/100) × 100 = 74%