P and Q are two points on a highway, 300 km apart. Two bikers A and B start at the same time from P towards Q. The speed of B is 12 km/h less than that of A. On reaching point Q, biker A immediately returns towards P. He meets B on the road at a place 60 km away from Q. What is the speed of A? **[CAPF (ACs) 2025]**