10th Class Mathematics Quadratic Equations Question Bank Quadratic Equations

  • question_answer
    Find two consecutive integers whose product is 600.

    A)  30, 20  

    B)         50, 12

    C)  15, 40  

    D)         24, 25

    Correct Answer: D

    Solution :

     Let the two consecutive integers be 'x' and \[\text{546}0=\text{22}\times \text{3}\times \text{5}\times \text{7}\times \text{l3}\]. According   to   the   problem, \[\therefore \] \[={{2}^{2}}\times {{3}^{2}}\times 5\times 7\times 11\times 13=180180\]             \[\therefore \]or 24 \[H.C.F.=\frac{\text{Product of the numbers}}{L.C.M.}\]              \[\text{5474}=\text{2}\times \text{7}\times \text{17}\times \text{23}\] \[\text{9775}={{\text{5}}^{\text{2}}}\times \text{17}\times \text{23}\]The required numbers are 24 and 25.


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