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    Question

    Rahul spent 15% and 25% of his monthly salary on

    electricity and groceries respectively. Out of the remaining amount, he spent 20% and 10% on education and health insurance, respectively. Now he gave 40% of the remaining amount to his wife and left with Rs. 15,120. Find the amount spent by Rahul on education.
    A Rs. 7,200 Correct Answer Incorrect Answer
    B Rs. 8,400 Correct Answer Incorrect Answer
    C Rs. 9,600 Correct Answer Incorrect Answer
    D Rs. 10,800 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    Let the monthly salary of Rahul = Rs. 100x Amount spent by Rahul on electricity and groceries together = 15x + 25x = Rs. 40x Amount spent by Rahul on education and health insurance together = 0.30 × (100x – 40x) = Rs. 18x Amount given to wife = 0.40 × (100x – 40x – 18x) = Rs. 16.8x So amount left with him = 0.60 × (100x – 40x – 18x) = 15120 25.2x = 15120 x = 600 So the amount spent by Rahul on education = 0.20 × 60 × 600 = Rs. 7,200

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