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Find the correct answer for the below calculation:
 
Find out the average velocity of Krishna, if he travels 18 \(km\) east in 19 \(hours\) and further he travels 10 \(km\) west in 2 \(hours\) to reach his destination.
 
The average velocity is  \(km/h\)
 
[Note: Submit the answer in a maximum of a single decimal].