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A motorist left town A at 8.15 am for town b, a distance of 330km. He covered the first 112km in #1frac{1}{3}# hours and stopped for 20 minutes to fuel. He continued with the journey arriving in town B at 11.55 am. What was the average speed for the whole journey?
A. 109km/h
B. 99km/h
C. 90km/h
D. 84km/h