In triangle JKL, where R and P are the midpoints of the sides KL and JL respectively, segment JR and segment KP intersect at point Q. The length of QR is 3 and the length of QP is 5. What are the lengths of PK and RJ?
1) PK = 10, RJ = 6
2) PK = 15, RJ = 9
3) PK = 6, RJ = 10
4) PK = 9, RJ = 15
