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A group of 4 people are meeting for lunch in a restaurant today. One eats there every 8 days. The second eats there every 9 days. The third one eats there every 10 days and the fourth eats there every...

copying machines A and B, working together, can prepare enough copies of the annual report for the board of directors in 2 hours. Machine A, working alone, would require 3 hours to do the job. How...

tatiana wants to run 5 miles at an average pace of 9 minutes per mile. after 4 miles, her average pace is 9 minutes 10 seconds. in how many minutes must she complete the the final mile to reach her...

At a certain time, Janice notices that her digital watch reads a minutes after 2:00. Fifteen minutes later, it reads b minutes after 3:00. She is amused to note that a is six times b. (Source: Ma...

(part 1 of 2) : A ship leaves port at noon and has a bearing of S 21 ? W. a) If the ship sails at 22 knots, how many nautical miles south will the ship have traveled by 6:00 PM...