Copyright by The Goodheart-Willcox Co., Inc.
42
Section 1 Whole Numbers
21. Thirty-nine rows of studs will be welded to a metal platform. Each row will be 5″ apart. There will ″
be 27 studs in each row. What is the total number of studs required?
22. A GMAW welder traveling at 17″ per minute was in constant use for 17½ ″ ½ hours each day for 24
days. How many inches of weld were deposited in that time?
23. The roof of an arena built for the University of Iowa requires 5,247 plates to secure the roof trusses
to the support beams. These plates vary in size and number of bolts required. The plates were
fl ame cut to shape, then subcontracted to a machine shop for drilling the bolt holes. According to
the information listed below, what is the total number of bolt holes that need to be drilled?
1,728 plates with 6 holes 2,235 plates with 14 holes
295 plates with 5 holes 15 plates with 23 holes
964 plates with 9 holes 10 plates with 10 holes
Use the information below to answer the questions that follow. The supplies listed below must be
transported from the ground fl oor storage to the top fl oor. Workers plan to use a freight elevator with a
capacity of 8,500 lb to send everything at once.
Steel Rods
Seven bundles of 17 rods each. Each rod is 4′ long and weighs 2 lb per foot.
Plates
Twelve stacks of 13 plates each. Each plate weighs 14 lb. The plates are stacked on 4
wooden pallets that weigh 39 lb each.
Angle Iron
Forty-two pieces. Each piece weighs 18 lb and is 4′ long.
Aluminum Tubing
Six bundles of 16 tubes. Each tube weighs 7 lb.
Four bundles of 12 tubes. Each tube weighs 9 lb.
Seven bundles of 5 tubes each. Each tube is 4′ long and weighs 2 lb per foot.
Four bundles of 5 tubes each. Each tube is 3′ long and weighs 2 lb per foot.
Pipe
Two bundles of 20 pipes each. Each pipe is 3′ long and weighs 2 lb per foot.
Seven bundles of 11 pipes each. Each pipe weighs 11 lb.
Hubs
Four cartons of 19 boxes each. Each box contains 6 hubs. The weight of each box including
the 6 hubs is 13 lb. Each carton is on a wooden pallet that weighs 39 lb.
Operator
The elevator operator weighs 165 lb.
24. Will the workers be able to send the whole load in a single trip?
25. What is the total load?