Final answer:
To calculate the time it takes for a barge to travel from Little Dunking to Puddle town, divide the distance (23 km) by the speed (6.1 km/h). The result is approximately 3.77 hours, which rounds to 3.8 hours when expressed to one decimal point.
Step-by-step explanation:
The question involves calculating the travel time of a barge moving along a straight canal between two points, Little Dunking and Puddletown, which are connected by a given distance. To find the time taken for the barge to travel from Little Dunking to Puddletown, we use the distance-speed-time relationship time = distance / speed.
The given distance is 23 km and the barge travels at a speed of 6.1 km/h. Applying the relationship:
Time = 23 km / 6.1 km/h
Time = 3.77 hours (approx)
When rounded to one decimal place, the barge takes 3.8 hours to travel from Little Dunking to Puddle town.