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

7th Class Mathematics Simple Equations Question Bank Linear Equation in one Variable

  • question_answer
    The perimeter of a square is 12 cm less than the perimeter of a rectangle. Each side of the square is of length 16 cm. While the length of the rectangle is 20 cm, find its breadth?                                                                    

    A)  12 cm                         

    B)  14 cm

    C)  16 cm            

    D)  18 cm

    Correct Answer: D

    Solution :

    (d) : Square side \[\to \] a : Rectangle sides 1 and b \[\Rightarrow 4a=2(1+b)-12\] \[\Rightarrow 4\times 16=2(1+b)-12\] \[\Rightarrow 38=(1+b)\] \[\Rightarrow 38=20+b\Rightarrow b=18\]


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