There are 10 true or false questions in an examination. Number of ways of answering these 10 questions which are marked either T or F is

Find the total number of ways of answering five objective type questions, each question having four choices

A student is to answer 10 out of 13 questions in an examination such that he must choose at least 4 from the first five questions. The number of choices available to him is

In an examination there are three multiple choice questions and each question has 5 choices. Number of ways in which a student can fail to get all answer correct is……….

In an examination there are three multiple choice questions and each question has 5 choices Number of ways in which a student can fail to get all answer correct is

Are exam paper contains 8 questions, 4 in Part A and 4 in Part B. Examiners are required to answer 5 questions. In how many ways can this be done if (i) There are no restrictions of choosing a number of questions in either parts.(ii) At least two questions from Part A must be answered