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    Question

    Out of a total sum of ₹5,000, Danish invested one part

    at 12% simple interest per annum and the remaining part at 10% simple interest per annum. If the total interest that accrued to Danish in two years equals ₹, 1072, what was the sum Danish invested at 12% simple interest per annum?
    A ₹2,150 Correct Answer Incorrect Answer
    B ₹1,750 Correct Answer Incorrect Answer
    C ₹1,800 Correct Answer Incorrect Answer
    D ₹2,000 Correct Answer Incorrect Answer

    Solution

    Let Rs. P be invested at 12% simple interest.   Hence, (5000 - P) is invested at 10% simple interest. According to the question,   (P × 12 × 2)/100 + ((5000 - P) × 10 × 2)/100 = 1072 24P - 20P + 100000 = 107200 4P =7200 P=1800.

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