Distance and bearing of the end point of a two-stage journey from speeds, times and bearings

A cyclist rides at a constant speed of \(18\text{ km h}^{-1}\). She leaves the point \(P\) and rides for \(40\) minutes on a bearing of \(125^\circ\) to the point \(Q\). She then rides for \(25\) minutes on a bearing of \(240^\circ\) to the point \(R\).

1. Find the distance \(PR\).[3]
2. Find the bearing of \(R\) from \(P\).[3]