I take a journey and, due to heavy traffic, crawl along the first half of the complete distance of my journey at an average speed of 1010 mph. How fast would I have to travel over the second half of the journey to bring my average speed to 2020 mph?""
At work, this has been a topic of a long debate.
Proposed answers included:
{infinity, 0,15,30,450,15,30,45, speed of light~}.
What do you think?
