Question

решение задачи На изготовление одной детали требовалось по норме три целых 4/15 часа, но рабочий потратил на её изготовление на 8/15 часа меньше. На иготовление другой детали рабочий затратил на одну целую 1/15 часа больше, чем на изготовление первой. Сколько времени затратил рабочий на изготовление этих двух деталей.

Answer 1

На первую деталь было потрачено времени 
3  4/15 - 8/15 = 2  19/15 - 8/15 = 2  11/15 (часа)

На вторую деталь было потрачено времени
3  4/15 +  1  1/15 = 4  5/15 (часа)

Всего затрачено времени 
2  11/15  +  4  5/15 = 6  16/15  =  7 целых 1/15 (часа)

Answer 2

Problem Analysis

The problem states that according to the standard, it takes 3 and 4/15 hours to manufacture one part. However, the worker took 8/15 hours less to manufacture it. For the second part, the worker took 1 and 1/15 hours more than the first part. We need to calculate the total time the worker spent manufacturing these two parts.

Solution

Let's break down the problem step by step:

1. Time taken to manufacture the first part according to the standard: 3 and 4/15 hours. 2. Time taken by the worker to manufacture the first part: 8/15 hours less than the standard time. 3. Time taken to manufacture the second part: 1 and 1/15 hours more than the time taken for the first part.

To find the total time taken by the worker to manufacture both parts, we need to add the time taken for each part.

Let's calculate the time taken for the first part by the worker:

Standard time for the first part: 3 and 4/15 hours

Time taken by the worker for the first part: 8/15 hours less than the standard time

Therefore, the time taken by the worker for the first part is: 3 and 4/15 - 8/15 = 3 and (4-8)/15 = 3 and -4/15 = 2 and 11/15 hours.

Now, let's calculate the time taken for the second part by the worker:

Time taken for the second part: 1 and 1/15 hours more than the time taken for the first part

Therefore, the time taken by the worker for the second part is: 2 and 11/15 + 1 and 1/15 = 4 and 6/15 hours.

Finally, let's calculate the total time taken by the worker to manufacture both parts:

Total time taken = Time taken for the first part + Time taken for the second part Total time taken = 2 and 11/15 + 4 and 6/15 = 7 and 17/15 hours.

Answer

The worker took a total of 7 and 17/15 hours to manufacture these two parts.

Note: The sources provided did not contain relevant information for this specific problem.