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    Question

    The value of an investment at simple interest grows to Rs.

    11,200 in 2 years and Rs. 15,200 in 6 years. What was the principal amount?
    A Rs. 5,650 Correct Answer Incorrect Answer
    B Rs. 9,200 Correct Answer Incorrect Answer
    C Rs. 3,600 Correct Answer Incorrect Answer
    D Rs. 6,150 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ,

    Interest earned in 4 years = 15,200 - 11,200 = Rs. 4,000

    Interest earned in 2 years = (4,000 / 4) × 2 = Rs. 2,000

    So, amount invested = 11,200 - 2,000 = Rs. 9,200

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