Lance arrives early at the slc airport (with flowers and balloons in hand) to welcome home his "friend" from a mission. her plane is delayed. while waiting, he notices that it takes 2 minutes 47 seconds to get down the hall if he stands on the moving sidewalk. while walking on the floor (not on the moving sidewalk), it took him 93 seconds. if he walks while on the sidewalk how long will it take him?