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    Question

    What is the total number of students in a college?

    I. In the college 25% of the students are between 17 to 22 years of age, and 40% of the remaining are above 28 years of age group. II. Ratio between the students of age group between 17 to 22 years and between 22 to 28 years is 4 : 5. III. The ratio of teachers to students in the college is 1 : 50 Each of the questions below consists of a question and three statements numbered I, II and III given below it. You have to decide whether the data provided in all the three statements are sufficient to answer the question. Read all the statements and give answer –
    A Only I and II Correct Answer Incorrect Answer
    B Only I and III Correct Answer Incorrect Answer
    C Only I and either II or III Correct Answer Incorrect Answer
    D All I, II and III Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    All these statements even together are not sufficient to answer the question because neither the number of students nor the number of teachers is given. Also, we don’t have the number of students of any age group.

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