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    Question

    The average monthly fee for 30 students in a workshop is

    Rs. 10,000. After an increase, the new monthly average fee for each student is Rs. (10000 + X). If the total fees for all students post-increase is Rs. 3,30,000, find the value of (4X + 10% of X).
    A 2100 Correct Answer Incorrect Answer
    B 4100 Correct Answer Incorrect Answer
    C 2800 Correct Answer Incorrect Answer
    D 4650 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ, Initial total fees for 30 students = 30 X 10000 = 3,00,000 New total fees for all 30 students = Rs. 3,30,000 Total fee increase = 330000 - 300000 = Rs. 30,000 So, X = (30000/30) = 1000 So, 4X + 10% of X = 4 X 1000 + 0.10 X 1000 = 4000 + 100 = 4100

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