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Javier rates his work - readiness on a scale from 0 to 10, with 10 being maximum readiness. He wants his rating to be as high as possible when he arrives at his office and has found that the rating is being affected by how late he sleeps and how long he spends preparing for work. His alarm clock sounds at 6am, at which time he has a work - readiness of 10. He needs to leave for work at exactly 6:40am. During these 40 mins, Javier's only activities are sleeping or preparing for work. If Javier spends more than 25 mins or less than 10 mins to prepare, his rating is reduced by 5 points. To sleep past 6am, however, Javier must use the snooze button on his alarm clock, which delays the alarm by 4 mins. Each press of the snooze button after the third will decrease Javier's efficiency rating by 1 point. : Two Part Analysis (TPA)