Look at the given data in the table and answer the question:
 
Duration
(in \(hr\))
0-4 5-8 9-12 13-16 17-20
Distance covered
(in \(km\))
8 19 26 36 49
 
What is the average speed of the journey for the firs\(16\) \(hours\)?
 
\(km\)/\(hr\)
 
Important!
Note: Enter your answer with 2 decimal digits.