Exam 1: Whole Numbers

A certain lighting job requires four incandescent fixtures, twelve direct fluorescent luminaries, and nine semidirect fluorescent luminaries. The incandescent fixtures cost $19 each; the direct luminaries cost $26 each; and the semidirect luminaries cost $31 each. Find the total cost of all the fixtures and luminaries.

At inventory time, 435 pounds of magnet wire for winding motors is available. In ten successive days, 15 pounds, 6 pounds, 24 pounds, 12 pounds, 3 pounds, 8 pounds, 17 pounds, 32 pounds, 16 pounds, and 13 pounds of wire are taken out of stock. How many pounds are left?

A wiring job uses 1,232 feet of cable for 56 outlets. What is the average number of feet per outlet?

A bearing on a large machine is tested over a period of 8 hours at a speed of 40,500 revolutions per hour. How many revolutions does the shaft turn in the bearing during the test period?

A buyer can purchase 70 screwdrivers. Ten 4-inch lengths, twelve 6-inch lengths, twenty 8-inch lengths are needed. How many heavy 24-inch screwdrivers can be bought to obtain the total of 70 screwdrivers?

A two-wire transmission line requires 134 miles of conductor for each wire. By straightening the proposed right-of-way, the distance is reduced by 7 miles. What will be the length of each new wire?

An electrician removes from stock, at different times, the following amounts of BX cable: 120 feet, 327 feet, 637 feet, 302 feet, 500 feet, 250 feet, 140 feet, 75 feet, and 789 feet. Find the total number of feet of BX cable taken from stock.

A wiring job requires 29 outlets to be spaced equally over 336 feet. One outlet is placed at the beginning of the 336 feet and one at the end. Find the center-to-center distance between the outlets.

A tapered pin has a small-end diameter of 101 centimeters and a large-end diameter of 189 centimeters. What is the difference between the two diameters?

At different times during the week, an electrician takes the following amounts of metallic cable from stock: 500 feet, 1,200 feet, 250 feet, 90 feet, 38 feet, 65 feet, 84 feet, 225 feet, and 125 feet. What is the total number of feet of metallic cable taken from stock?

A purchase of 2,500 feet of number 14 double-braided, rubber-covered wire is made for a job. On November 1, 978 feet of this wire are used, and on November 3, 1,023 feet are used. How many feet of wire are left?

An inventory sheet shows a balance of 500 outlet boxes on January 1. On January 10, 127 outlet boxes are taken out of stock. On January 14, 61 outlet boxes are returned to stock. How many outlet boxes are left in stock after January 14?

How many 250-foot rolls of BX cable are needed if a job requires a total of 5,250 feet?

A wiring job requires 5,127 feet of cable. If the cable comes in 250-foot coils, how many coils of cable are required?

The line graph shows the monthly consumption of energy in kilowatt-hours for a house during a one-year period. Find the total amount of energy consumed during the year. $E _ { C }$

On a 124-foot length of Romex cable, 32 staples are used. The staples are equally spaced. If one staple is placed at the beginning and one at the end of the cable, how far apart are the staples placed?

Eight different boxes contain a number of 3/4 inch, # 8 flat-head, bright wood screws. The numbers of screws are 124, 72, 36, 92, 38, 64, 74, and 67. What is the total number of screws?

The following number of BX staples are used during a given period: 28, 250, 38, 108, 92, 130, 25, 36, 97, 91, 65, and 40. Find the total number of BX staples used.

If the number -5 is entered in a calculator followed by the (+/-) key what will be displayed on the calculator?

Box A and box B each contain type C connectors. Box A contains 200 connectors and costs $30. Find the cost of box B, which contains 260 connectors. The unit price is the same for both boxes.