A mountain climber starts a climb and elevation of 380 ft above sea level. At his first rest stop he has climbed 182 ft, and by his second rest stop he climb another 208 ft. It is getting late in the day so the climber starts his way down the mountain. If the climber descends $235 ft, how much does he need to descend to return to his original starting point?
155 ft
78 ft
535 ft
235 ft
To return to the climber's original starting point, he needs to descend the same amount of elevation he gained during the climb.
He climbed a total of 182 ft + 208 ft = <<182+208=390>>390 ft.
Therefore, he needs to descend 390 ft to return to his original starting point.
Since he has already descended 235 ft, he still needs to descend 390 ft - 235 ft = <<390-235=155>>155 ft.
Therefore, he needs to descend an additional 155 ft to return to his original starting point. Answer: \boxed{155\, \text{ft}}.