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    Question

    A sum of money grows to Rs. 7,500 in 5 years and Rs. 8,250

    in 7 years under simple interest. What is the original principal amount?
    A 2680 Correct Answer Incorrect Answer
    B 5625 Correct Answer Incorrect Answer
    C 1650 Correct Answer Incorrect Answer
    D 1120 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ,
    Difference in interest over 2 years: 8,250 − 7,500 = 750
    Annual interest: 750 / 2 = 375
    Principal = 7,500 − (5 × 375) = 5,625

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