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In a 'multiple choice question' test there are eight questions. Each question has four alternative of which only one is correct. IF a candidate answers all the questions by choosing one answer for each question, then the number of ways to get exactly 4 correct answer is

A test paper has 40 questions. Each question that is answered correctly is given 2 marks. Azar answered 37 questions correctly. How many marks did Azar score in the test?

A student is given a quiz with 10 true or false question, and he answers by sheer guessing. If X is the number of question answered correctly. If the student passes the quiz by getting 7 or maximum correct answer, then the probability that the student passes the quiz is

In a test there are total n questions.Bhanu answers 20 out of 25 questions correctly in the first section.In the second section he answers 60% question correct and thus his total score is 66.66% in the test.Given that all the questive marking.The total no.of question in the test is :