Lines and intersect at

MATHEMATICS · Single correct · CBSE · Mathematics · Lines and Angles · Lines and Angles

Problem

Lines

AB

and

CD

intersect at

O

. If

\angle AOC = 3x - 20^{\circ}

and

\angle BOD = 2x + 25^{\circ}

, find the value of

x

. (a) 35 (b) 45 (c) 25 (d) 65