Question: Every morning Harry takes 15 minutes to buy coffee and a bagel and twice that long to read the paper and eat before going in to work. How long does Harry's morning routine take?
Work out the solution step by step. 
Answer: 
First find the time Harry spends eating: 15 minutes * 2 = 30 minutes
Then add the time he spends buying breakfast to find the total time: 30 minutes + 15 minutes = 45 minutes