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SSC Sample Paper SSC CHSL (10+2) Sample Test Paper-4

  • question_answer
    If a bacterium cell divides in every 20 minutes, how many bacteria will be formed in two hours?

    A)  16                               

    B)  8

    C)  64                     

    D)         4

    Correct Answer: C

    Solution :

     Bacteria generally reproduces by binary fission - a process in which division gives rise to two identical cells. 20 minutes \[=1/{{3}^{rd}}\] of an hour. 2 hours: \[2\times 3=6\]thirds of an hour= 6 divisions. If all survive and reproduce, the population after 6 divisions\[=2\times 2\times 2\times 2\times 2\times 2=64\]bugs


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