The answer would be a (5) (41) hope that helped

As, 

=0.301029+0.845098+1.13943
=2.26007
=2.260(approximate)
Given:
unit rate: 20km/h
Speed = distance / time
20kmh = 30km / time
time = 20kmh / 30km
time = 2/3 hrs or 40 minutes
2/3 hrs * 60mins/hr = (2*60)/3 = 120/3 = 40 minutes