Enter the warehouse and go forward six feet, moving between the half dozen boxes of bolts.How many feet, in total, did you travel while in the warehouse

Question

Enter the warehouse and go forward six feet, moving between the half dozen boxes of bolts.
Put a mark on the floor and travel forward another nine feet being careful to avoid the 10 crates of ball bearings that are in the way.
Put another mark on the floor and walk the remaining fifteen feet to the 3 barrels by the far wall.
After placing the last mark, turn around and come straight back the way you walked in.

Answer 1

6ft + 9ft + 15ft = 30ft

double it for the same distance back = 60ft

 

The obstacles and the marks on the floor are distractions that have no effect on the distance traveled, because there is no indication that the path had to be altered or extended.  Total travel in the warehouse is 60 feet.