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    Question

    Out of a total of 200 students in a class, 60% are boys

    and the rest are girls. Out of the total number of students who appeared in the class test, 25% failed while out of the total number of boys who appeared in the test, 50% passed the test. Find the number of girls who passed the test given that all the students in the class appeared for the test.
    A 50 Correct Answer Incorrect Answer
    B 85 Correct Answer Incorrect Answer
    C 90 Correct Answer Incorrect Answer
    D 75 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ Number of boys in the class = 200 × 0.60 = 120 Number of girls in the class = 200 – 120 = 80 Number of students who failed in the test = 200 × 0.25 = 50 Number of students who passed the test = 200 – 50 = 150 Number of boys who passed the test = 120 × 0.50 = 60 Number of girls who passed the test = 150 – 60 = 90

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