分数计算器

A software company named Hardsoft has three divisions, each staffed by at least 10 people. The ratio of men to women is 7:5 in Finance and Administration, 3:4 in Marketing and Sales and 8:7 in Research and Development. If there are 100 men working in Hardsoft and every Hardsoft employee works for one of the three divisions, then the difference between the maximum and minimum possible number of women working in Hardsoft is

Olivia, Jacob, and Ethan are laying down tile flooring in a large hallway. Working alone, Olivia can tile the hallway in 6 hours, Jacob can tile the hallway in 4 hours, and Ethan can tile the hallway in 5 hours. To speed up the work, two of them will work together to tile the hallway, with each person working at his or her respective rate.

Select the value closest to the shortest time in which a 2-person team could tile the hallway, and select the value closest to the longest time in which a 2-person team could tile the hallway. Make only two selections, one in each column.

The PQ&R Corporation has developed a collection of training materials and skills tests for activities that accurately represent the types of tasks performed by employees in a production environment. Before any instruction is given, each trainee is asked to perform the training battery—a series of tasks for which they are about to receive training. Immediately on completion of instruction, trainees are again asked to perform the training battery to assess the effectiveness of instruction. After performing the battery for the second time, the trainees become employees of PQ&R. On completion of their six-month introductory period of employment, trainees are required to perform the training battery a third time.

The table below presents the export data of ten different commodities from country Z.

For each of the following statements, select Correct if the statement is true according to the information provided; otherwise, select Incorrect.

If , what is the value of n?