Question 6
Bob earns 40 coins per hour and starts work at 8:00. Each completed 15 minutes of lateness costs one quarter of the hourly wage. Arriving at 8:11 incurs no fine; arriving at 8:20 incurs one 15-minute fine. Train services are:
Slow: from 6:00 every 5 minutes,40-minute journey, fare 5. Regular: from 6:00 every 10 minutes,30-minute journey, fare 10. Fast: from 7:00 every 15 minutes,20-minute journey, fare 15. Express: from 8:00 every 30 minutes,10-minute journey, fare 20. Bob reaches the station at 8:08 after oversleeping. Which train minimizes fare plus late fine?
Slow: from 6:00 every 5 minutes,40-minute journey, fare 5. Regular: from 6:00 every 10 minutes,30-minute journey, fare 10. Fast: from 7:00 every 15 minutes,20-minute journey, fare 15. Express: from 8:00 every 30 minutes,10-minute journey, fare 20. Bob reaches the station at 8:08 after oversleeping. Which train minimizes fare plus late fine?