Five Scores in a classroom are broken into Fiverespective different ranges:51-60,61-70,71-80,81-90 and91-100.The number of students who have scored ineach range is given below.51 to 60-3 students,61 to 70 - 8 students,71 to 80-7 students,81 to 90-4 students, and91 o 100-3 students.Furthermore, we know that the number ofstudents who scored 76 or more is atleast onemore than those who scored below 75. What isthe minimum possible average overall of thisclass?