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    Subject

    Bank Exam

    Topic

    One Bank Ltd. - Special Cadre Officer - 2018

    4.8×109  \sqrt {4.8 \times {{10}^{9\;}}} is closest in value of

    ক)
    2,200
    খ)
    70,000
    গ)
    2,20,000
    ঘ)
    70,00,000
    ঙ)

    Explanation

    Solution: 4.8×109  \sqrt {4.8 \times {{10}^{9\;}}} = 4.8×1000×106  \sqrt {4.8 \times 1000 \times {{10}^{6\;}}} = 4800×106   =(70×103  )2\sqrt {4800 \times {{10}^{6\;}}}  = \sqrt {{{(70 \times {{10}^{3\;}})}^2}}    [Closest value বলায় 4,800 কে 4,900 ধরা হয়েছে ] = 70 × \times 1,000 = 70,000

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