Rays , and are drawn such that lies between and . If and , then for which value of…

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

Problem

Rays

OA

OC

and

OD

are drawn such that

OC

lies between

OA

and

OD

. If

\angle AOC=(2y+20)^{\circ}

and

\angle COD=(4y-20)^{\circ}

, then for which value of

y

will

OA

and

OD

form a straight line? (a) 20 (b) 28 (c) 30 (d) 60