There are 60 questions in a question paper. If no two students solve the same combination of questions but solve equal number of questions, then the maximum number of student who appeared in the examination, is

In an examination paper of five questions, 5% of the candidates answered all of them and 5% answered none. Of the rest, 25% candidates answered only one question and 20% answered 4 questions. If 396 candidates answered either 2 questions or 3 questions, the number of candidates that appeared for the examination was

In an examination paper of five questions, 5% of the candidates answered all of them and 5% answered none. Of the rest, 25% candidates answered only one question and 20% answered 4 questions. If 396 candidates answered either 2 questions or 3 questions, the number of candidates that appeared for the examination was

A question paper has 6 questions. How many ways does a student have to answer if he wants to solve at least one question?

For a set of four multiple choice questions with three options (multiple correct possible), no two students have given the same sequence of answers. What is the maximum number of students that sat for the test, for this to be possible, given that each student attempts all the questions. No student gives all the correct answers?

For a set of four multiple choice questions with three options (multiple correct possible), no two students have given the same sequence of answers. What is the maximum number of students that sat for the test, for this to be possible, given that each student attempts all the questions. No student gives all the correct answers?

Study the following table and answer question. Number of students appeared in an examination from five citie s: The total number of students who appeared in the examination from cities C and D is what percent more than the total number of students who failed in cities A, B and E ? (nearest to an integer)