In a class test in mathematics, 10 students scored 75 marks, 12 students scored 60 marks, 8 students scored 40 marks and 3 students scored 30 marks. Find the mean of their score.

In a class test in English 10 students scored 75 marks, 12 students scored 60 marks, 8 scored 40 marks and 3 scored 30 marks, the mode for their score is

In an examination, 20% of the students scored 70 marks, 40% scored 80 marks, 30% scored 90 marks and the rest scored 100 marks. Then the mean score of the students is

In a class, in an examination in Mathematics, 10 students scored 100 marks each 2 students scored zero and the average of the remaining students is 72 marks. If the class average is 76, then the number of students in the class is

In a class test, a student scored 21 marks out of 25 marks. The student's marks in percentage terms is:

If 10 out of 30 students scored below 75% marks in a test. Find the ratio of student scored below 75% marks to the student scored 75% and above marks.

In a class test, a student scored 8 marks out of 25 marks. The student's marks in percentage is:

In a class test, a student scored 8 marks out of 25 marks. The student's marks in percentage is:

A student scored 30% marks and failed by 45 marks. Another student scored 42% marks and scored 45 marks more than the passing marks. Find the passing marks.