(i) The intruder said the given line.(ii) The intruder had been telling Gerrard that he had murdered one man, and that he would not shy away from murdering him too. This is because the police could not hang him twice for two murders.

Let r cm be the radius and h cm be the height of a pipe (cylinder), then                           r = 7 cm = And, h = 5 km = 5000 m
[distance covered in 1 hr. = height of pipe]Now, Volume of water that flows out of the circular pipe in 1 hourLet l, b and h are respectively the length, breath and height of the tank (cuboid), then                         l = 50 m                        b = 44 mand                   h =  7 cm =           Now, Volume of water that flows in the rectangular tank                 = l x b x h           time taken to flow 77 m3 of water in to the tank K = 1 hr time t