Question

    Rs. (4x + 200) is invested at a simple interest rate of 18% per annum, earning an interest of Rs. 2160 after 4 years. Calculate the interest earned when Rs. (5x - 100) is invested at the same rate for the same period.

    A Rs.2400 Correct Answer Incorrect Answer
    B Rs.3240 Correct Answer Incorrect Answer
    C Rs.3528 Correct Answer Incorrect Answer
    D Rs.3128 Correct Answer Incorrect Answer
    E none of these Correct Answer Incorrect Answer

    Solution

    ATQ, Equation for initial investment: Interest with new principal ; The interest earned with the new investment is Rs.3240

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