Lines and are parallel and cut by a transversal

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

Problem

Lines

l

and

m

are parallel and cut by a transversal. The measures of the two consecutive interior angles are

(5x+10)^{\circ}

and

(7x-10)^{\circ}

. Find the value of

x

. (a)

12

(b)

18

(c)

15

(d)

10