SSC CGL 2023 PYQ — Question 55

The correct answer is option 2 i.e. 115^o.

From the given figure,

∠AOB = 2∠ACB

⇒ ∠ACB = $130 \over 2$ 

⇒ ∠ACB = 65^o

Also, ∠ACB + ∠APB = 180^o

⇒ ∠APB = 180^o - 65^o

⇒ ∠APB = 115^o

Hence the required answer is 115^o.