Tourists were on a hiking trip for three days. on the first day, they hiked 1/8 of the trail. on the second day they hiked 4/7 of the remaining trail. on the third day they hiked1/3 of the remaining trail and the last 8 km. how many km is the whole trail?

Abird on top of a 200 ft bridge tower sees a man standing on the lower part of the bridge (which is 50 ft above the ground). the angle of depression from the bird is 26 ̊. how far is the man from the base of the bridge tower? with explanation and pictures .