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?
Choose one: A) 22 B) 75 C) 44 D) 28 E) 12
S = (90 + 60)/2= 
<gadget id="calculator">(90 + 60)/2</gadget>
<output>75</output>
75 kmph   Answer: 75
<result>B</result>
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?