John Traveled from point A to B in 4 merter per sec and from B to A in 6 meter per sec. What is his average speed?	Pick.
A) 4.6m/s B) 4.8m/s C) 5.2m/s D) 5.4m/s E) 5.8m/s
Since the distance traveled is same, we can apply direct formula= 2XS1XS2/(S1+S2)   2X4X6/10= 4.8. '4.8m/s' is the answer.
<result>B</result>
John Traveled from point A to B in 4 merter per sec and from B to A in 6 meter per sec. What is his average speed?