Two supplementary angles differ by $20^{\circ}$. Larger is

Two supplementary angles differ by $20^{\circ}$. Larger is
  1. $100^{\circ}$
  2. $80^{\circ}$
  3. $110^{\circ}$
  4. $90^{\circ}$

Solution

$x + (x-20) = 180 \Rightarrow 2x = 200 \Rightarrow x = 100^{\circ}$.

Asked in: MH-SSC-9

Practice more Parallel Lines questions on Aicharya