1)
[tex]x^{\circ}[/tex] in 2 seconds
[tex]\frac{x}{2}=\frac{270^{\circ}}{3}\\\\\frac{x}{2}=\frac{90^{\circ}}{1}\\\\ 1\cdot x = 2\cdot 90^{\circ} \\\\ x = 180^{\circ}[/tex]
2)
[tex]270^{\circ}\ : \ 3 = 90^{\circ }[/tex] in 1 second
[tex]2\cdot 90^{\circ}=180^{\circ}[/tex]