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    Question

    A candidate just passed by getting 50 answers correct by

    attempting 75 of the total questions. Find the total number of questions in the examination if a candidate needs 50% marks. (All questions carry equal marks)
    A 150 Correct Answer Incorrect Answer
    B 125 Correct Answer Incorrect Answer
    C 200 Correct Answer Incorrect Answer
    D 250 Correct Answer Incorrect Answer

    Solution

    Let the total number of questions be x. then, Percentage need in exam = 25% Correct answer = 50 percentage = (correct answer)/(total questions) 100 25 = 100 x = 200 Alternate method Given that 50 ≡ 25% 1 ≡ % 200 ≡ 100% total number of questions = 200

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