Subject

    গাণিতিক যুক্তি

    Topic

    সরলীকরণ

    The sum of daily income of P, Q and R is Tk. If Q earns Tk. 10 more than P and R earns double of what Q earns, then what is the average of daily income of P and Q?

    ক)
    18
    খ)
    20
    গ)
    14
    ঘ)
    12

    Explanation

    প্রশ্নমতে, বা, x+x+10+2(x+10) = 90 বা, 2x+10+2x+20 = 90   বা, 4x = 60     x = 15     p = 15 এবং Q এর আয় = 15 + 10 = 25 গড় আয় = 15+252=402=20\frac{{15 + 25}}{2} = \frac{{40}}{2} = 20

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