MCQ
In a $\triangle \text{ABC},$ if $\angle \text{A}+\angle \text{B}=150^\circ$ and $\angle \text{B}+\angle \text{C}=75^\circ,$ then $\angle \text{B} =$
- A$35^\circ $
- ✓$45^\circ$
- C$55^\circ$
- D$25^\circ$
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