Johns goes to the gym 3 times a week.  He spends 1 hour each day lifting weight. Additionally, he also spends a third of his weightlifting time warming up and doing cardio each day.  How many hours does he spend at the gym a week?
He spends 60/3=<T>divide(60, 3)=20.0 minutes warming up
So he spends 60+20=<T>add(60, 20)=80 minutes at the gym per day
That means he spends 80*3=<T>multiply(80, 3)=240 minutes at the gym
So he spends 240/60=<T>divide(240, 60)=4.0 hours at the gym a week
