Four friends decided to host the grand opening of their bar on st. patrick’s day. they built their bars at different distances from each other. john’s bar is 60 km away from ben’s bar. doug’s bar is 40 km away from kieran’s bar. john’s bar is 10 km nearer to doug’s bar than to kieran’s bar. can you find out how far away is doug’s bar to ben’s bar?

Me with this assignment ! i only partially understand, so explain. also it's a work sample. at the championship bike race, steve and paula were fighting for first place. steve was 175 feet ahead of paula and had only 300 feet left to go. he was very tired and was going only 9 feet per second. paula was desperate to catch up and was going 15 feet per second. who won the bike race and by how far did she/he win?