A methods and measurement analyst wants to develop a time standard for a certain task. In a preliminary study, he observed one worker perform the task six times with an average observed time of 20 seconds and a standard deviation of 3.5 seconds. What is the standard time for this task if the employee worked at a 15.5 percent faster pace than average, and an allowance of 25.2 percent of the workday is used? (Keep one decimal place in your answer)