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If A and B are in the ratio 4 : 5 and the difference of their squares is 81, what is the value of A?

    • Posted by Manisha Sharma 4 years, 4 months ago

    Competitive Exams > SSC CGL > Quantitative Aptitude
    • 3 answers

    Parvinder Yadav 3 years, 11 months ago

    (5x)²-(4x)²=81 25x²-16x²=81 9x²=81 X²=81/9 X²=9 X=3

    0Thank You

    Danish Qureshi 4 years, 3 months ago

    9

    0Thank You

    Pratee Sharma 4 years, 4 months ago

    9

    0Thank You

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