Subject

    Bank Exam

    Topic

    Joint Recruitment Test for 7 Banks and Financial Institutions - (Senior Officers) - 05.11.2021

    Given the equations below, what is the value of mn?2(m+n)+ m = 9; 3m – 3n = 24

    ক)
    5
    খ)
    -3
    গ)
    12
    ঘ)
    -15

    Explanation

    Given, 3(m-n) = 24 ⇒ m = 8+n Now, 3m+2n = 9 ⇒ 3(8 + n) + 2n = 9 ⇒ 5n = -15 ⇒ n = -3 Again, m = 8+n = 8 - 3 = 5 So, mn = 5 × (-3) = -15

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