The average marks obtained by 80 students in an examination is 50. If the average marks of passed students is 55 and the number of students who failed with examination are 30, then what is the average marks of students who failed the examination?
options A) 41.66 B) 52.33 C) 46.66 D) 40.33 SOLUTION TOTAL STUDENTS = 80 1250/30 = 41.66 ANSWER = 41.66