7th Class Mathematics Integers Question Bank Number System

  • question_answer
    Find the multiplicative inverse of \[{{\left( \frac{3}{8} \right)}^{-1}}\]

    A)  \[\frac{3}{8}\]

    B)  \[\frac{5}{8}\]             

    C)  1                                

    D)  0

    Correct Answer: A

    Solution :

                            (a): Let 'a' be multiplicative inverse Then, \[a\times {{\left( \frac{3}{8} \right)}^{-1}}=1\] \[\Rightarrow a=\frac{3}{8}\].


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