Mohan, a student of class - V secured `315` marks out of `450` . Find marks in percentage .

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

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:

One mark is awarded to a student for one correct incorrect and deducted one mark each for one wrong answer. Thus a student secures 70 marks out of 100 marks. Find the numbers of worng answers.

The data below shows the number of students in class A having secured different marks. What is the mean marks of class A?

In an examination, A secured 25% more marks than B. B secured 10% less marks than C. C secured 25% more marks than D. If D secured 320 marks out of 500. How many marks did A secure?