Answer: 20.2 mph
Step-by-step explanation:
Given
Train travels 10.1 miles in half an hour i.e.
Distance 
time 
we know, 
Insert the values

I think it is 8.83? I am not positive but it is worth a try
The ratio given is 4:5 so you do 5divided by 20 which is 4 and multiply 4 and 4 and get 16 so your ratio is 16:20
Answer: 
<u>Multiply</u>
60%×1200=720
Note: When finding the percent of a number always multiply the percent times the number.