The speed of a car is 90 km in the first hour and 42 km in the second hour. What is the average speed of the car?\nOptions:\n(A) 89 kmph\n(B) 92 kmph\n(C) 75 kmph\n(D) 65 kmph\n(E) 66 kmph OK. Let's think. Some random thoughts first:
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S = (90 + 42)/2 = 66 kmph The answer: (E).
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