question archive Rock bolts are used in the tunnel, 3 per set 8 ft
Rock bolts are used in the tunnel, 3 per set 8 ft
Subject:Civil EngineeringPrice: Bought3
Rock bolts are used in the tunnel, 3 per set 8 ft. long each. The sets are 4 feet apart. How many rock bolts are used and what is the total length of them?
