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Railways Sample Paper RRBs Assistant Loco Pilot and Technician CBT STAGE-I Sample Paper-31

  • question_answer
    By how much does\[\sqrt{12}+\sqrt{18}\]exceed\[\sqrt{3}+\sqrt{2}\]

    A)  \[2(\sqrt{3}-\sqrt{2})\]

    B)         \[2(\sqrt{3}+\sqrt{2})\]

    C)  \[\sqrt{3}+2\sqrt{2}\]   

    D)  \[\sqrt{2}-4\sqrt{3}\]

    Correct Answer: C

    Solution :

    \[(\sqrt{12}+\sqrt{18})-(\sqrt{3}+\sqrt{2})\] \[=(2\sqrt{3}-\sqrt{3})+(3\sqrt{2}-\sqrt{2})\] \[=\sqrt{3}+2\sqrt{2}\]


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