Respuesta :

[tex]\begin{gathered} XR=2XU \\ XU=\frac{XR}{2} \\ UR=XR+\frac{XR}{2} \\ XR=40 \\ UR=40+\frac{40}{2} \\ UR=40+20 \\ UR=60 \\ \text{The value of UR is 60} \end{gathered}[/tex]