2. Questions Bank
  3. 7th Class
  4. Mathematics
  5. Simple Equations

7th Class Mathematics Simple Equations Question Bank Simple Equations

  • question_answer
    The lengths of the sides of a triangle are \[(2a+1)\,\,cm,\,\,(3a+2)\,\,cm\] and \[(4a-1)\,\,cm\]. For what value of 'a' is the perimeter of the triangle \[92\,cm\]?

    A)  \[5\]                    

    B)         \[9\]

    C)  \[8\]                                    

    D)  \[10\]  

    Correct Answer: D

    Solution :

       Perimeter =\[(2a+1)+(3a+2)+(4a-1)=92\] \[\Rightarrow \] \[a=\frac{92-2}{9}=\frac{90}{9}=10\]


You need to login to perform this action.
You will be redirected in 3 sec spinner