From the Circle Graph, We can notice that :
★ 32% of 125 teenagers chose watching Television
[tex]:\implies \mathsf{\left(\dfrac{32}{100} \times 125\right)}\;\textsf{teenagers chose watching television}[/tex]
[tex]:\implies \mathsf{\left(\dfrac{32}{20} \times 25\right)}\;\textsf{teenagers chose watching television}[/tex]
[tex]:\implies \mathsf{\left(\dfrac{8}{5} \times 25\right)}\;\textsf{teenagers chose watching television}[/tex]
[tex]:\implies \mathsf{\left(8 \times 5\right)}\;\textsf{teenagers chose watching television}[/tex]
[tex]:\implies \large\boxed{\mathsf{40}}\;\textsf{teenagers chose watching television}[/tex]