Steve traveled the first 2 hours of his journey at 50 mph and the last 3 hours of his journey at 80 mph. What is his average speed of travel for the entire journey?
Select the correct option.
A) 60 mph	B) 68 mph	C) 53.33 mph	D) 64 mph	E) 66.67 mph
Answer   Average speed of travel = Total distance travelled/Total time taken   Total distance traveled by Steve = Distance covered in the first 2 hours + distance covered in the next 3 hours.   Distance covered in the first 2 hours = speed * time = 50 * 2= 
<gadget id="calculator">50 * 2</gadget>
<output>100</output>
100 miles.   Distance covered in the next 3 hours= speed * time = 80 * 3= 
<gadget id="calculator">80 * 3</gadget>
<output>240</output>
240 miles.   Therefore, total distance covered= 100 + 240= 
<gadget id="calculator">100 + 240</gadget>
<output>340</output>
340 miles.   Total time taken= 2 + 3= 
<gadget id="calculator">2 + 3</gadget>
<output>5</output>
5 hours.   Hence, average speed= Total distance travelled/Total time taken=340/5= 
<gadget id="calculator">340/5</gadget>
<output>68</output>
68 miles per hour.   Choice 68 mph
<result>B</result>
Steve traveled the first 2 hours of his journey at 50 mph and the last 3 hours of his journey at 80 mph. What is his average speed of travel for the entire journey?