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    Question

    A&B invested their sum in the ratio of 22: 25.

    Respectively. In two different schemes. Offering simple interest of 15% per annum and compound interest of 12% per annum. Respectively. Such that interest received by A. At the end of three years was rupees 1062 more than that by B at the end of two years? Find this sum invested by A.
    A 6400 Correct Answer Incorrect Answer
    B 5600 Correct Answer Incorrect Answer
    C 6300 Correct Answer Incorrect Answer
    D 6600 Correct Answer Incorrect Answer
    E 6800 Correct Answer Incorrect Answer

    Solution

    Let the sum invested by A&B be rupees 22y and rupees 25y respectively. Then interest received by A = 22y*15*3/100 = Rs. 9.9y Interest received by B = 25y{1+(12/100)} 2 –25y = Rs. 6.36y According to question, 9.9y-6.36y = 1062 y=300 So some invested by A = 22*300 = Rs. 6600

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