Stream of consciousness rationale: He spends 60 / 3 = 20 minutes warming up. So he spends 60 + 20 = 80 minutes at the gym per day. That means he spends 80 * 3 = 240 minutes at the gym. So he spends 240 / 60 = 4 hours at the gym a week.
The question and answer pair are described below.
Q: 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?
A: 4