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    Question

    Rs.7800 is divided into two parts such that if one part

    be invested at 3% and the other at 5%, the annual interest from both the investments is Rs. 320. Find each part.
    A Rs.2400, Rs.3000 Correct Answer Incorrect Answer
    B Rs.3500, Rs.4300 Correct Answer Incorrect Answer
    C Rs.4400, Rs.3200 Correct Answer Incorrect Answer
    D Rs.1700, Rs.3700 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    Let the amount lent at 3% rate = Rs. x. Then, amount lent at 5% rate = 7800 - x So, => 3% of x + 5% of (7800 - x) = 320 => 5% of 7800 – 2% of x = 320 => 390 – 2% of x = 320 => 2% of x = 70 => x = (70/2) × 100 => x = Rs. 3500 Amount lent at 3% rate = Rs. 3500 Amount lent at 5% rate = 7800 – 3500 = Rs.4300

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