In an examination joseph answered 15 question, of which 9 answers were correct answers but the remaining 6 were incorrect. If he gets 5 marks for each correct answer and his total is 33, let 's find the marks alloted for incorrect answer in the examinations.

Rehana and sayan both appeared for an examination & each of them will have to answer 12 question (i) Rehana got 36 marks in total by answering 8 questions correctly and remaining 4 questions incorrectly. If she got 6 marks for each correct answer, let's find total marks obtained by her.

Rehana and sayan both appered for an examination & each of them will have to answer 12 questions (i) Rehana got 36 marks in total by answering 8 questions correctly and remaining 4 questions incorrectly. If she got 6 marks for each correct answers. (ii) Sayan got 6 questions correctly and remaining 6 questions incorrectly. Let's find total marks obtained by him.

Mizanoor, Tiratha and nafura appeared for an examination, there were 10 Question in the examination. In this examination one will get 5 marks for each correct answer and -2 marks for each incorrect answer. A) Nafura has got 3 correct and remaning 7 incorrect answers.let's find what is the marks obtained by Nafura.

Mizanoor, Tiratha and nafura appeared for an examination, there were 10 Question in the examination. In this examination one will get 5 marks for each correct answer and -2 marks for each incorrect answer. A) Mizanoor has got 6 correct and rest 4 incorrect answers.

Mizanoor, Tiratha and nafura appeared for an examination, there were 10 Question in the examination. In this examination one will get 5 marks for each correct answer and -2 marks for each incorrect answer. A) Tirath has got 5 correct and remaning 4 incorrect answers.

In a multiple choice question, there are four alternative answers of which one or more than one is correct A candidate will get marks on the question only if he ticks the correct answer. The candidate decides to tick answers at a random. If he is allowed up to three chances to answer the question, then find the probability that he will get marks on it.

Let's find total marks obtained by sayan if he answered 6 question correctly and 6 questions answered incorrectly.

In an entrance test, there are multiple choice questions. There are four possible answers to each question, of which one is correct. The probability that a student knows the answer to a question is 90%. If the gets the correct answer to a question, then find the probability that he was guessing.

To obtain grade A is an examination a student must score an average of 90 marks or more in five papers each of 100 marks. If his marks in first four papers are 82,92,94 and 88, then find the minumum marks he should score in fifth paper if he wants to get grade A in the examination.