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7th Class Mathematics Integers Question Bank Number System

  • question_answer
    The area of a rectangular room is \[45\frac{1}{4}\]m2. If breadth is \[9\frac{3}{7}\]m, then its length is

    A)  \[\frac{255}{264}m\]                            

    B)  \[\frac{1215}{28}m\]           

    C)  \[\frac{255}{28}m\]                 

    D)  \[\frac{1267}{264}m\]

    Correct Answer: D

    Solution :

    (d): length \[\times \] breadth = area \[\therefore \] length \[=\frac{45\frac{1}{4}}{9\frac{3}{7}}=\frac{181}{4}\times \frac{7}{66}\]             \[=\frac{1267}{264}\].


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