A sailboat travels 3 miles in 1.5 hours. How far does it travel in 2 hours. = 3 miles / 1.5 hours = 2 miles per hour = (2 miles) * (2 hours) = 4 miles in 2 hours.
So, in conclusion, if a sailboat travels 3 miles in 1.5 hours, it travels 4 miles in 2 hours.
