Final answer:
To determine the number of sit-up sets Calvin and Mike do, specific details about their workout regimen are needed, such as the number of sit-ups per set and the total goal, to perform calculations or use arithmetic sequences.
Step-by-step explanation:
The question regarding how to determine the number of sit-up sets done by Calvin and Mike involves mathematical reasoning. It may require applying knowledge of arithmetic sequences or using data provided in the form of a workout log or schedule. To accurately determine the number of sets, one would need specific information about their workout regimen. This includes details such as the number of sit-ups done in each set, the total number of sit-ups aimed to be completed within the workout session, and whether their workout increments or varies day by day or week by week. With this information, you could either create an equation or simply divide the total sit-ups by the number of sit-ups in each set to find out how many sets Calvin and Mike do.