https://www.khanacademy.org/math/class-9-bridge-course-mh/x31106d01a69095e7:ratio-and-proportion/x31106d01a69095e7:time-work-speed/e/time-work-speed 2026-02-03T09:09:58.884796068Z Time, Work, Speed In this exercise, students will practice solving real-life problems involving inverse variation, where increasing one quantity decreases the other (such as worker–days and speed–time situations). Khan Academy exercise