Telangana Police Constable Prelims 2018 Paper

A and B are at points P and Q respectively. The destinations of A and B are Q and P respectively. Both of them started at the same time in the opposite directions on the same route. After some time they met each other at the point R. A and B take respectively 9 hours and 4 hours to reach their destination from R, If the speed of A is 48 kmph then the speed B (in kmph) is