A or possibly C because the other options have nothing to do with the size of the vibration. If i was you I would answer with A
<em>im confused hold on imma send you a link to the answer</em>Explanation:
Strange as it may seem, I don't think ANY of those choices will work. Anybody else ?
Answer:
Total distance, 
Explanation:
It is given that,
Speed of Aaron from home is y mph and walk back at x mph. Let t is the total time he spend in walking and jogging. Let d is the distance covered.
We he moves from home to destination, time is equal to, 
Similarly, when he move back to home, time taken is equal to 
Total time taken is equal to :




So, the distance he speed in walking and jogging is
. Hence, this is the required solution.