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    Question

    The simple interest received after 2 years on Rs (x +

    800) at the rate of 20% p.a is Rs (2x – 1800). The amount received on Rs 4x when invested at 50% p.a compound interest, compounded annually for 2 years can be:
    A Rs. 16975 Correct Answer Incorrect Answer
    B Rs. 11925 Correct Answer Incorrect Answer
    C Rs. 15161 Correct Answer Incorrect Answer
    D Rs. 15572.50 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    According to the question,
    {(x + 800) × 2 × 20}/100 = (2x – 1800)
    => 2x + 1600 = 10x – 9000
    => 8x = 10600
    => x = 1325
    Therefore, required amount received = 4x . (1 + 50/100)2 = Rs. 11925

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