36 ppl per run, 36x for x=Number of runs.
Set 10000=36x to solve for x.
x=10000/36 which is about 278 times.
The Problem changes if the amount of ppl getting on isn't constant, it's ultimately a question of the number of ways to partition 10,000 with values under 36.
For instance- 1 person at a time requires 10,000 rides.
