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    Question

    Aman invested Rs. x at 9% per annum simple interest for

    4 years and Neha invested Rs. (x + 800) at 12% per annum simple interest for 1 year. If the total interest is Rs. 372, find x.
    A Rs.500 Correct Answer Incorrect Answer
    B Rs.550 Correct Answer Incorrect Answer
    C Rs.575 Correct Answer Incorrect Answer
    D Rs.525 Correct Answer Incorrect Answer

    Solution

    ATQ:
    (x × 9 × 4)/100 + {(x + 800) × 12 × 1}/100 = 372
    36x + 12x + 9600 = 37200
    48x = 27600
    x = Rs. 575

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