Question

127. Токарь, делая по 108 деталей в час, изготовил все детали за 5 часов. Если он будет делать по 60 деталей в час, то за сколько часов изго- товит все детали? Пропорции ​

Answer 1

Ответ:

Пошаговое объяснение:

всего деталей 108*5 = 540

540/60 = 9 часов

Answer 2

Problem Analysis

We are given that a lathe worker, while producing 108 parts per hour, completed all the parts in 5 hours. We need to determine how many hours it will take for the worker to produce all the parts if they produce 60 parts per hour.

Solution

Let's assume that the total number of parts to be produced is P.

We are given that the worker produces 108 parts per hour and completes all the parts in 5 hours. Therefore, the total number of parts produced in 5 hours is:

108 parts/hour * 5 hours = 540 parts

Now, we need to find out how many hours it will take for the worker to produce all the parts if they produce 60 parts per hour.

Let's assume that it will take x hours to produce all the parts at a rate of 60 parts per hour.

Using the concept of proportions, we can set up the following equation:

108 parts/5 hours = 60 parts/x hours

To solve for x, we can cross-multiply and solve for x:

108 * x = 60 * 5

108x = 300

x = 300/108

x ≈ 2.78 hours

Therefore, it will take approximately 2.78 hours for the worker to produce all the parts if they produce 60 parts per hour.

Answer

If the worker produces 60 parts per hour, it will take approximately 2.78 hours to produce all the parts.