Percentage Practice Test 6 with solutions

Let the number of students = 100
Number of students failed in English = 52
Number of students failed in Mathematics = +42
Total students failed in English and Mathematics = 94
Number of failed students in both the subjects the = 17
Number of students failed in the class = 94 - 17 = 77 students
Number of students passed in both the subjects = 100 - 77 = 23 students
Percentage of candidates = 23%