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Banking Sample Paper RRB Assistant (PT) Sample Test Paper-1

  • question_answer
    Direction: What approximate value will come in place of question mark (?) in the following questions? (You are not expected to calculate the exact value.)
    \[\sqrt{10200}\times \sqrt{9215}-{{(43.96)}^{2}}=?+{{(64.105)}^{2}}\]

    A)  6332

    B)  4664

    C)  5237

    D)  3664

    E)  6230

    Correct Answer: D

    Solution :

    \[\sqrt{10200}\times \sqrt{9215}-{{(43.96)}^{2}}=?+{{(64.105)}^{2}}\] or,\[?\approx \sqrt{10201}\times \sqrt{9216}-{{(44)}^{2}}-{{(64)}^{2}}\] \[=101\times 96-1936-4096\] \[=9696-6032=3664\]


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