Question

Первые 4 часа работы машинистка печатала по 6 страниц текста в час, а в следущие 4 часа - по 4 страници текста в час. Чему равна средняя производительность этой машинистки? Сможет ли она, работая с такой производительностью, перепичатать за 3 рабочих дня рукописью объёмом 125 страниц? (Один рабочий день - это 8 часов

Answer 1

1)(4*6)+(4*4)=40 страниц  за 1 день

2)40*3=120 страниц  за 3 дня

125> 120 значит не сможет 

Answer 2

Calculation of Average Productivity

To calculate the average productivity of the typist, we need to find the total number of pages typed and divide it by the total number of hours worked.

In the first 4 hours, the typist typed 6 pages per hour, resulting in a total of 6 * 4 = 24 pages.

In the next 4 hours, the typist typed 4 pages per hour, resulting in a total of 4 * 4 = 16 pages.

Therefore, the total number of pages typed by the typist in 8 hours is 24 + 16 = 40 pages.

To find the average productivity, we divide the total number of pages typed by the total number of hours worked:

Average productivity = Total pages typed / Total hours worked = 40 pages / 8 hours = 5 pages per hour.

Calculation of Time Required to Re-type Manuscript

To determine if the typist can re-type a manuscript of 125 pages in 3 working days, we need to calculate the total number of hours required to complete the task.

Since one working day is 8 hours, the total number of working hours in 3 days is 3 * 8 = 24 hours.

Given that the typist's average productivity is 5 pages per hour, the total number of pages the typist can type in 24 hours is 5 * 24 = 120 pages.

Since the manuscript is 125 pages, it is not possible for the typist to re-type the entire manuscript within 3 working days.

Therefore, the typist will not be able to re-type a manuscript with a volume of 125 pages within 3 working days.