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    Question

    Rs. (n + 200) invested on simple interest amounts to Rs.

    2,400 and Rs. 2,880 in 4 years and 6 years, respectively. Find the value of 'n'.
    A 1000 Correct Answer Incorrect Answer
    B 1500 Correct Answer Incorrect Answer
    C 1240 Correct Answer Incorrect Answer
    D 1150 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    Interest earned in 2 years = 2,880 - 2,400 = Rs. 480
    Interest earned in 1 year = 480 ÷ 2 = Rs. 240
    Interest earned in 4 years = 240 × 4 = Rs. 960
    So, n + 200 = 2,400 - 960
    Or, n + 200 = 1,440
    Or, n = 1,240

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