Question 1123510
<br>
What a strange presentation of the problem.  You don't give a speed; and you say we have to "make an estimate of one final piece of information".<br>
Is the speed the thing we are to estimate?<br>
Okay, I'll make it easy.  I'll estimate a speed of 20,000 miles per hour; then it will take 1 day of riding (12 hours) for the trip.<br>
It's rather pointless to tell us to use no more than 2 significant digits if you don't tell us the speed.