Motorbike journey

This task is about maths problems involving speed and distance.
Two motorbikes are on their way to Mount View Resort.
Super Speedy left Remayn travelling at 90 km/h and Bi Betta left Whatta Place travelling at 60 km/h.
They got to a meeting place when Bi Betta had covered 60 km.


 

a) How long did it take them to get to the meeting place? __________ 
 
b) How far was it from Remayn to Whatta Place? __________ km
 
c)
If it is 270 km from the Meeting Place to Mount View Resort and the two bikes travel at the same speed as before,
how long will Super Speedy have been there when Bi Betta arrives?
 
__________