Subject

    Quantitative Aptitude

    Topic

    Ratio

    Three angles of a triangle are in the proportion of 5 : 6 : What is the difference in degrees between biggest and the smallest angles?

    ক)
    15
    খ)
    20
    গ)
    25
    ঘ)
    30

    Explanation

    suppose, big angle is 7x medium angle 6x small   angle 5x so ,the difference in degrees between biggest and the smallest angles =(7x-5x) =2x here, 5x+7x+6x=180 or,18x=180 or,x = 10 so ,difference = 2X10=20

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