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    Question

    Shreya invests an amount of Rs. (3600 + x) at an annual

    compound interest rate of 12% for 2 years. The total interest earned by her after 2 years is Rs. 1017.60. What is the value of 32% of 'x'?
    A 176 Correct Answer Incorrect Answer
    B 160 Correct Answer Incorrect Answer
    C 96 Correct Answer Incorrect Answer
    D 144 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    CI = P (1 + R/100)t - P ATQ, (3600 + x) X (1.12) 2 - (3600 + x) = 1017.6 Or, (3600 + x) X 0.2544 = 1017.6 Or, 915.84 + 0.2544x = 1017.6 Or, 0.2544x = 101.76 So, 'x' = 400 Therefore, required value = 400 x 0.32 = 128

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