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    Question

    A certain sum placed at simple interest grows to Rs.

    9,450 in 2 years and Rs. 13,050 in 6 years. Find the invested amount.
    A Rs. 5,650 Correct Answer Incorrect Answer
    B Rs. 7,650 Correct Answer Incorrect Answer
    C Rs. 3,600 Correct Answer Incorrect Answer
    D Rs. 6,150 Correct Answer Incorrect Answer

    Solution

    ATQ,

    Interest earned in 4 years = 13,050 - 9,450 = Rs. 3,600

    Interest earned in 2 years = (3,600 / 4) × 2 = Rs. 1,800

    So, amount invested = 9,450 - 1,800 = Rs. 7,650

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