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    Question

    Given below is a question followed by two statements

    numbered I and II, each containing some information. You have to decide which of the statements is/are sufficient to answer the question. Read both the statements and decide the appropriate answer. What is the number of students in the class? Statements: I. Rank of Chetan is 19th from the top and 12th from the last. II. 11 students got lower rank than Chetan.
    A Statement II alone is sufficient to answer the question while statement I alone is not sufficient. Correct Answer Incorrect Answer
    B Either statement I alone or statement II alone is sufficient to answer the question. Correct Answer Incorrect Answer
    C Both statements I and II together are necessary to answer the question. Correct Answer Incorrect Answer
    D Statement I alone is sufficient to answer the question while statement II alone is not sufficient. Correct Answer Incorrect Answer

    Solution

    Statement I: Rank of Chetan is 19th from the top and 12th from the last. This statement provides information about Chetan's rank but doesn't directly give the total number of students in the class. However, it gives us the positions of Chetan from both ends of the class. To find the total number of students, we can add the rank from the top and the rank from the bottom and subtract 1 (to avoid counting Chetan twice): Total number of students = 19 + 12 - 1 = 30 So, statement I alone is sufficient to answer the question.

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