The speed of a car is 90 km in the first hour and 55 km in the second hour. What is the average speed of the car?
Choose the correct choice from the following:
A) 72.5 kmph
B) 75 kmph
C) 87 kmph
D) 56 kmph
E) 86 kmph
S = (90 + 55)/2= 
<gadget id="calculator">(90 + 55)/2</gadget>
<output>145/2 = around 72.5</output>
72.5 kmph   72.5 kmphnswer: 72.5 kmph
<result>A</result>
The speed of a car is 90 km in the first hour and 55 km in the second hour. What is the average speed of the car?