10th Class Mathematics Real Numbers Question Bank Real Numbers

  • question_answer Which of the following numbers have terminating decimal expansion?

    A) \[\frac{8}{225}\]                    

    B) \[\frac{5}{18}\]                      

    C)  \[\frac{11}{21}\]       

    D)         \[\frac{21}{150}\]                 

    Correct Answer: D

    Solution :

    If the prime factorization of q in rational number \[\frac{p}{q}\] is of the form of \[{{2}^{n}}\times {{5}^{m}},\] where m and n are non-negative integers, then the number has a terminating decimal expansion.

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