The speed of a car is 100 km in the first hour and 80 km in the second hour. What is the average speed of the car?	Choices
A) 50 kmph B) 65 kmph C) 90 kmph D) 85 kmph E) 90 kmph
Explanation:   S = (100 + 80)/2= 
<gadget id="calculator">(100 + 80)/2</gadget>
<output>90</output>
90 kmph   90 kmph)
<result>C</result>
The speed of a car is 100 km in the first hour and 80 km in the second hour. What is the average speed of the car?