Final answer:
To calculate the total hours logged by students who have each logged 3 1/2 hours, multiply the number of students by 3.5. Without the number of students, we can't determine the total hours.
Step-by-step explanation:
The question is concerned with how many total hours have been logged by students who have each logged exactly 3 1⁄2 hours. To answer this, we need additional information: namely, the number of students who have logged these hours. Without that number, we cannot calculate the total hours logged. However, we can provide a general equation: if n is the number of students who have each logged 3 1⁄2 hours, then the total number of hours logged is n multiplied by 3.5 hours (since 3 1⁄2 hours is equal to 3.5 hours).
For example, if 10 students have each logged 3 1⁄2 hours, the total hours logged would be 10 students × 3.5 hours/student = 35 hours.