City A to city B, Ameer drove for 1 hour at 60 mph and for 3 hours at 50 mph. What was the average speed for the whole trip? Select the correct option
A) 57  B) 52.5  C) 58.2  D) 59  E) 62
The total distance is 1×60+3×50=210   And the total time is 4 hours. Hence,   Average Speed=(Total Distance/Total Time)=210/4= 
<gadget id="calculator">210/4</gadget>
<output>105/2 = around 52.5</output>
52.5   Answer : 52.5
<result>B</result>
City A to city B, Ameer drove for 1 hour at 60 mph and for 3 hours at 50 mph. What was the average speed for the whole trip?