WorkKeys Level 6: Calculating Rates

Q. A software coder can type 79 words per minute. She works 5 eight hour days each week (not including breaks). How many words does she type in a week? A. 189,600 words B. 33 words C. 3,160 words D. 76,950 words HINT: (79 words × 60 minutes) × 8 hours × 5 days = ?

A. 189,600 words

Q. It takes 11 widgets to assemble one motor. Your team can assemble four motors in one day. If you need to order parts for next week (5 working days), how many widgets should you order? A. 220 B. 55 C. 44 D. 308 HINT: 11 widgets/motor × 4 motors/day × 5 days/week = ?

A. 220

Q. It takes 2.5 yards of material to make a dress. Harley's Clothing Design estimates that they can produce 48 dresses each week. If there are 52 weeks in a year, how much material will they need to purchase to make dresses for a year? A. 6,240 yards B. 150 yards C. 5,910 yards D. 2,704 yards HINT: Compute the number of dresses made in one year, the material needed.

A. 6,240 yards

Q. A circuit board manufacturer can produce 2,000 boards per hour. How many days will it take to produce 16,500 if the company has a 10 hour work shift? A. Less than one day B. More than a week C. Two days D. A day and a half HINT: Calculate how many boards can be produced in one 10-hour day.

A. Less than one day

Q. Rates can be adjusted for different time periods. If you know how many parts can be made in an hour, then you can determine how many parts can be made in a matter of seconds and minutes, or even days and weeks. A. True B. False HINT Review the on-page instruction.

A. True

Q. Two pumps are used to empty a sewage tank. One pump pumps 60 gallons per minute (gpm) and the second pumps 50 gpm. They pumped for 30 minutes. How many total gallons are pumped? A. 3,000 B. 3,300 C. 3,600 D. 3,960 HINT: Find the number of gallons each pump pumps separately, then add them.

B. 3,300

Q. An assembly line produces 2 toasters per minute. It is 2:00pm and the line has finished 560 out of its goal of 900 for the day. The line stops at 5:00pm. A co-worker is urging you to stop the line for a half hour break, saying that you will make the goal anyway. Should you stop the line for a half hour break? A. Yes, you will meet the goal either way. B. Can't tell from this information. C. No, you will be 40 short if you do. HINT: Find the toaster production rate for one (1) hour. Then calculate how many toasters will be made in 3 hours, and subtract that amount from the goal.

C. No, you will be 40 short if you do.

Q. Your startup company has invented a new water filter. If the filter can process 10 gallons of water per minute, then how many gallons of water can it process in one 24-hour day? A. 4,800 B. 600 C. 12,600 D. 14,400 HINT: 10 gallons/minutes × 60 minutes/hour × 24 hours/day = ? gallons/day

D. 14,400