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    A person bought a plot for ₹1,20,000. He sold 15\frac{1}{5}51​​ part of this plot at a loss of 10%. At what profit percent should he sell the rem
    Question

    A person bought a plot for ₹1,20,000. He sold 15\frac{1}{5}​ part of this plot at a loss of 10%. At what profit percent should he sell the remaining plot to earn a profit of 27% on the whole transaction?

    A.

    36.25%

    B.

    40.69%

    C.

    28.68%

    D.

    30.75%

    Correct option is A

    Given:
    Total CP = ₹1,20,000
    Part 1:15 \frac{1}{5} ​ sold at 10% loss.
    Part 2: Remaining 45\frac{4}{5}​ sold at x% profit.
    Overall Target: 27% profit.
    Concept Used:
    Weighted Average Method.
    (w1×p1)+(w2×p2)=ptotal(w_1 \times p_1) + (w_2 \times p_2) = p_{total}​​
    Solution:
    Let the profit percentage on the remaining part be x.
    Equation:
    (15×10)+(45×x)=27(\frac{1}{5} \times -10) + (\frac{4}{5} \times x) = 27​​
    Multiply the entire equation by 5 to remove denominators:
    1(10)+4(x)=27×510+4x=1354x=145x=1454x=36.25%1(-10) + 4(x) = 27 \times 5 \\-10 + 4x = 135 \\4x = 145 \\x = \frac{145}{4} \\x = 36.25\%​​
    So the correct answer is (a)

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