The speed of a car is 20 km in the first hour and 30 km in the second hour. What is the average speed of the car?  Choose one:
A) 25 kmph	B) 85 kmph	C) 34 kmph	D) 23 kmph	E) 45 kmph
S = (20 + 30)/2= 
<gadget id="calculator">(20 + 30)/2</gadget>
<output>25</output>
25 kmph   25 kmphnswer:25 kmph
<result>A</result>
The speed of a car is 20 km in the first hour and 30 km in the second hour. What is the average speed of the car?