I’ve heard something similar. They jump on each other’s camels. If person A passes the finish line first, then the person B’s camel crossed first, so person A’s camel crossed last, so they won because their camel is slower.
You’re doing this in high school? It’s easy, just divide be 60 to get miles per minute (1 and one half) then multiply by 10 to get 10 miles and 5 miles, so 15 miles. I learned this at the start of middle school.
I’ve seen this comic before…in an earlier comic.