Question

    There are 1000 students in a school. The boys to girls

    ratio is 4:6. If 7 out of every 10 boys pass, and 6 out of every 9 girls pass, find the total number of students who cleared the exam.
    A 482 Correct Answer Incorrect Answer
    B 545 Correct Answer Incorrect Answer
    C 680 Correct Answer Incorrect Answer
    D 875 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ,

    Number of boys = (4/10) × 1000 = 400

    Number of girls = (6/10) × 1000 = 600

    Required number of students = (7/10) × 400 + (6/9) × 600 = 280 + 400 = 680

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