City Hall Race Math Problem?

Question

During the great mration at city hall. 50% of it's runners dropped out before reaching the first water station. By the second water station 1/3 of the remanding runners dropped out. By the forth wather station 90% of the remanding runners dropped out. If the remanding six runners finished the marathon how many runners finished the race?

Show Work :)

Answer 1

i think you have give the answer away in the question. lol