Question

In the given figure, POQ is a line, then the valie of 'x' is

Answer 1

Here,
${40}^{\circ }+4x+3x={180}^{\circ }$ [since POQ is straight line]
$7x={180}^{\circ }-{40}^{\circ }$
$x=\frac{140}{7}={20}^{\circ }$
Hence, the value of 'x' is ${20}^{\circ }$