2650 boys and 1100 girls are examined in a test; 42% of the boys and 36% of the girls pass the test. The percentage of the total who failed is:

Correct option is A

Ans. (a)
Sol. Let's calculate the number of boys and girls who failed the test:
· Number of boys who passed = 42% of 2650 = 1113 boys
· Number of boys who failed = 2650 - 1113 = 1537 boys
· Number of girls who passed = 36% of 1100 = 396 girls
· Number of girls who failed = 1100 - 396 = 704 girls
Now, the total number of students who failed = 1537 boys + 704 girls = 2241 students.
Total students = 2650 boys + 1100 girls = 3750 students.
The percentage of students who failed = (2241 / 3750) × 100 = 59.76%.