CTET 2 Math and Science 23 Dec 2021 Paper

Let assume that one angle is x°
Its supplement angle = (180 - x)°
According to the question:
⇒ 2(180 - x) - x = 30°
⇒ 360° - 2x - x = 30°
⇒ 330° = 3x
⇒ x = 110°
∴ The angle is 110°
The correct option is 3 i.e. 110°