The function to be maximize is:

Calories Burned = (Run Calories)(Run Minutes) + (Aerobic Calories)(Aerobic Minutes)

+ (Row Calories)(Row minutes)

Run Minutes >= 5 Minutes

Row Minutes >= 15 Minutes

Row Minutes + Aerobic Minutes + Run Minutes <= 30

When solved with EXCEL Solver, Max Calories = 240

Row Minutes = 15

Run Minutes = 15

Aerobic Minutes = 0