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SSC Sample Paper SSC CGL - Sample Paper-22

  • question_answer
    A copper sphere of diameter 36 cm is drawn into a wire of diameter 4 mm. Find the length of the wire.

    A) 2000 m            

    B) 1500 m

    C) 1944 m

    D) 1855 m

    Correct Answer: C

    Solution :

    Let length of the wire be h. According to the question, Volume of sphere = Volume of wire Or         \[\left[ \frac{4}{3}\pi \times 18\times 18\times 18 \right]\]             \[=\left[ \pi \times \frac{2}{10}\times \frac{2}{10}\times h \right]\] Or         \[h=(100\times 1944)\,cm\]             \[=\frac{100\times 1944}{100}\]             \[=1944\,m\]     


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