Question
At 8 a.m., Albert started from City D and travelled towards City E and his speed remained constant throughout. At 9 a.m., Xuan started her journey from City D towards City E at an average speed of 84 km/h. Xuan overtook Albert at 2 p.m. After overtaking, Xuan carried on her journey at the same average speed and reached at City E at 1:25 p.m.
  1. Find Albert's average speed in km/h.
  2. What is the distance between the two cities?
4 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

At 8 a.m., Albert started from City D and travelled towards City E and his speed remained constant throughout. At 9 a.m., Xuan started her journey from City D towards City E at an average speed of 84 km/h. Xuan overtook Albert at 2 p.m. After overtaking, Xuan carried on her journey at the same average speed and reached at City E at 1:25 p.m.
  1. Find Albert's average speed in km/h.
  2. What is the distance between the two cities?