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    Question

    Neha deposited Rs. 3000 at (R + 6)% per annum simple

    interest and received Rs. 2160 as interest in 3 years. What would be the interest if she invested the same sum at R% for 2 years?
    A Rs.1080 Correct Answer Incorrect Answer
    B Rs.1650 Correct Answer Incorrect Answer
    C Rs.1770 Correct Answer Incorrect Answer
    D Rs.1450 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ,

    3000 × (R + 6)/100 × 3 = 2160

    Or, 90R + 540 = 2160

    Or, 90R = 1620

    Or, R = 18

    Desired Interest = 3000 × 18/100 × 2 = Rs. 1080

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