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Discussion

  1. A trader mixes 25% kerosene to his petrol and then he sells the whole mixture at the price of petrol. if the cost price of kerosene be 50 % of the cost price of petrol, what is the net profit percentage ?
    1. 11 1/9 %
    2. 12 1/9 %
    3. 9 1/11 %
    4. 20 %
  1. Correct Option: A

    K = 1 litre, price of K = 1
    P = 4 litre price of P = 2

    price of total (new) mixture = 1 X 1 + 4 X 2 = Rs. 9
    price of pure petrol of same quantity = 5 X 2 = Rs. 10
    Percentage profit = [(10-9) / 9] x 100 = 111/9 %

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