In the given figure, AOB is a straight line. The value of x is:
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → 50
The ray OC stands on the straight line AOB, so the two angles it makes form a linear pair: they add up to 180°.
\((x+55)+(2x-25)=180\)
\(3x+30=180\)
\(3x=150\), so \(x=50\)