Give stream of consciousness and then the final answer. The speed of a car is 90 km in the first hour and 60 km in the second hour. What is the average speed of the car?
Options:
(A) 22
(B) 75
(C) 44
(D) 28
(E) 12
S = (90 + 60)/2 = 75 kmph
The final answer: (B).