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    Question

    In a school having 600 students, 55% are boys. Out of the

    boys and girls, 40% and 35% respectively enjoy reading books. How many students do not enjoy reading books?
    A 242 Correct Answer Incorrect Answer
    B 374 Correct Answer Incorrect Answer
    C 125 Correct Answer Incorrect Answer
    D 345 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ,

    Total number of boys = 600 × 0.55 = 330

    Total number of girls = 600 - 330 = 270

    So, number of boys who do not enjoy reading = 330 × 0.6 = 198

    So, number of girls who do not enjoy reading = 270 × 0.65 = 175.5 ≈ 176

    So, required number of students = 198 + 176 = 374

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