In the diagram, $\angle P Q R=90^{\circ}$. The value of $x$ is
(A) 30
(B) 60
(C) 90
(D) 10
(E) 45

![](https://cdn.mathpix.com/cropped/2024_04_20_6027bc27089ed4fc493cg-063.jpg?height=344&width=333&top_left_y=766&top_left_x=1297)
Since $\angle P Q R=90^{\circ}$, then $2 x^{\circ}+x^{\circ}=90^{\circ}$ or $3 x=90$ or $x=30$.

ANSWER: (A)