City A to city B, Andrew drove for 1hr at 46 mph and for 3 hours at 60 mph. What was the average speed for the whole trip?
Answers:	A) 56.5	B) 57.5	C) 61	D) 61.5	E) 62.5
The total distance is 1×46+3×60=226   And the total time is 4 hours. Hence,   56.5verage Speed=(Total Distance/Total Time)   =226/4= 
<gadget id="calculator">226/4</gadget>
<output>113/2 = around 56.5</output>
56.5   56.5
<result>A</result>
City A to city B, Andrew drove for 1hr at 46 mph and for 3 hours at 60 mph. What was the average speed for the whole trip?