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CEMC Gauss (Grade 8), 1998

Algebra Difficulty 1.0 Junior Find the answer Canada

Stephen had a 10:00 a.m. appointment 60 km from his home. He averaged 80 km/h for the trip and arrived 20 minutes late for the appointment. At what time did he leave his home?

(A) $9:35$ a.m. (B) $9:15$ a.m. (C) $8:40$ a.m. (D) $9:00$ a.m. (E) $9:20$ a.m.

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