Question

[Ai siêu TA nhất lớp 5A]

Question 1:
12 hours 24 minutes  2 =  hours.
(Write your answer by decimal in the simplest form)

Question 2:
5 minutes 27 seconds: 3 =  seconds.

Question 3:
0.6 hour =  minutes.

Question 4:
51 hours =  days
(Write your answer by decimal in the simplest form)

Question 5:
How far will Mary travel if she rides her motorbike for 24 minutes at a speed of 75 miles/hour?
Answer:  miles.

Question 6:
Yesterday Peter roller skated for 2.5 hours at a speed of 6 km/h. How many kilometers did he skate?
Answer:  km.

Question 7:
How fast is Anna going if she runs 8 miles in the park in only 2 hours?
Answer:  mile/hour.

Question 8:
How fast is Jack going if the train he is on travels 20 miles in just 6 minutes? 
Answer:  miles/hour.

Question 9:
The distance between 2 trees is 300 meters. It will take a bird 30 seconds to fly between these 2 trees. How fast is the bird in kilometer per hour?
Answer:  km/h.

Question 10:
The area of a rectangle ABCD is . Given a random point E inside of ABCD.Find the total area of triangles AED and BEC. 
Answer: