Jassy skated 1 hr 5 min each day for 5 days and 1 hr 30 min each day for 3 days. How long would he have to skate the ninth day in order to average 85 minutes of skating each day for the entire time?
- A: 1 hr
- B: 1 hr 10 min
- C: 1 hr 20 min
- D: 1 hr 40 min
- E: 2 hr
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