jeya travels the first 8 hours of her journey at 50 mph speed and the remaining 2 hours at 30mph speed. What is the average speed of jeya's travel in mph?
Answers: A) 41mph B) 43mph C) 44mph D) 42mph E) 46mph
Explanation :   Average speed=Total Distance/Time.   Total distance travelled by jeya= Distance covered in the first 8 hours + Distance covered in the next 2 hours.   Distance covered in the first 8 hours = 8Ã—50=400 miles   Distance covered in the next 2 hours= 2Ã—30=60 miles   Therefore, total distance travelled = 400+60= 
<gadget id="calculator">400+60</gadget>
<output>460</output>
460 miles.   The total time taken= 8+2= 
<gadget id="calculator">8+2</gadget>
<output>10</output>
10hours.   Hence, the average speed=460/10= 
<gadget id="calculator">460/10</gadget>
<output>46</output>
46mph.   Answer : 46mph
<result>E</result>
jeya travels the first 8 hours of her journey at 50 mph speed and the remaining 2 hours at 30mph speed. What is the average speed of jeya's travel in mph?