Answer :
First we have to divide the distance traveled by the time it took.
3952/3 = 1317.33km/h
Now that we have our speed of kilometres per hour, we have to subtract 184 kilometres from the 1317.33 to get the new speed per hour.
1317.33 - 184 = 1133.33
Therefore, the speed for the plane when traveling in cloudy skies is 1133.33km/h.