In a triangle PQR, if $\angle P+\angle R=150°$ and $\angle P+3 \angle Q=170°$, then $\angle P$ is equal to:
Answer & explanation
Correct answer: option 2
P+R = 150
We know, P+Q+R = 180
Q = 30
Given, P+3Q = 170
P + 3×30 = 170
P = 80
The correct answer is Option (2) → 80°