The distance from $A$ to $B$ is $408km$ . From $A$ in direction of $B$ move motorcyclist , and from $B$ in direction of $A$ move a bicyclist . If a motorcyclist start to move $2$ hours earlier then byciclist , then they will meet $7$ hours after bicyclist start to move . If a bicyclist start to move $2$ hours earlier then motorcyclist , then they will meet $8$ hours after after motorcyclist start to move . Find the velocity of motorcyclist and bicyclist if we now that the velocity of them was constant all the time .