There are 10 true-false statements in a question paper.How many sequences of answers are possible in which exactly three are correct?

There are 12 true - false questions in an examination .How many seqences of answer are possible?

There are 4 multiple-choice questions in an examination. How many sequence of answers are possible, if each question has 2 choices ?

There are 4 multiple choice questions in an examination. How many sequences of answers are possible, if each question has 2 choices?

There are 4 multiple choice questions in an examination. How many sequences of answers are possible, if each question has 2 choices?

There are 6 multiple choice questions in an examination. How many sequence of answers are possible, if the first three questions have 4 choices each and the next three have 5 each?

There are 6 multiple choice questions in an examination.How many sequences of answers are possible,if the first three questions have 4 choices each and the next three he 2 each?

There are 6 multiple choice questions in an examination. How many sequences of answers are possible, if the first three questions have 4 choices each and the next three he 2 each?

There are 10 true-false questions in an examination.Then these questions can be answered in

There are 10 true-false questions in an examination. Then these questions can be answered in