Subject

    Quantitative Aptitude

    Topic

    Percentage

    A book sells for Tk. This price gives the seller a profit of 30% on his cost. What would be the new selling price if he cuts his profit to 10% of the cost?

    ক)
    Tk. 55
    খ)
    Tk. 50
    গ)
    Tk. 45
    ঘ)
    Tk. 40

    Explanation

    at 30% profit, selling price 130 tk when cost 100 tk selling price  1 tk when cost 100/130 tk selling price 65 tk then cost 100 X 65/130 tk=50 tk then, at 10% profit, when buying price 50 tk then selling price=50 X 110/100= 55 tk

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