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    Question

    In a class, 3/7 of the students are girls and rest are

    boys. If 1/3 of the girls and 1/5 of the boys are absent. What part of the total number of students are present?
    A 26/35 Correct Answer Incorrect Answer
    B 23/36 Correct Answer Incorrect Answer
    C 28/49 Correct Answer Incorrect Answer
    D 17/25 Correct Answer Incorrect Answer

    Solution

    Let the total number of students in a class be x ∴ According to the question, Number of girls = 3/7 x and number of boys = x - 3/7 x = 4/7 x Number of girls who are absent = 1/3 × 3/7 x = x/7 and number of boys who are absent = 1/5 × 4/7 x = 4x/35 ∴ Total number of students who are present = x - x/7 - 4x/35 = (35x - 5x - 4x)/35 = 26x/35 ∴ The 26/35 part of the students are present in the class.

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