A) \[{{97}^{o}}\]
B) \[{{27}^{o}}\]
C) \[{{77}^{o}}\]
D) \[{{55}^{o}}\]
Correct Answer: B
Solution :
Since, CD is a straight line. \[\therefore \] \[{{40}^{o}}+{{35}^{o}}+\angle BOC={{180}^{o}}\] \[\Rightarrow \] \[\angle BOC={{180}^{o}}-{{75}^{o}}={{105}^{o}}\] Now, AB is a straight line. \[\therefore \] \[\angle BOC+\angle y+{{48}^{o}}={{180}^{o}}\] \[\therefore \] \[\angle y={{180}^{o}}-({{105}^{o}}+{{48}^{o}})={{27}^{o}}\]
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