Question

Токарь за 45 минут изготовил 21 деталь.За какое время токарь изготовит 14 деталей? решение

Answer 1

45 мин-21 деталь
х мин-14 деталей
х=45*14:21=30 мин
ответ:за  30 минут токарь изготовит 14 деталей

Answer 2

Problem Analysis

A lathe worker (tokar) is able to produce 21 parts in 45 minutes. We need to determine how long it will take for the worker to produce 14 parts.

Solution

To solve this problem, we can set up a proportion using the number of parts and the time it takes to produce them.

Let's assume that the time it takes to produce 14 parts is represented by x minutes. We can set up the following proportion:

21 parts / 45 minutes = 14 parts / x minutes

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

21x = 14 * 45

x = (14 * 45) / 21

Now, let's calculate the value of x.

Calculation

Using the formula above, we can calculate the value of x:

x = (14 * 45) / 21

x = 630 / 21

x = 30

Therefore, it will take the lathe worker 30 minutes to produce 14 parts.

Answer

The lathe worker will be able to produce 14 parts in 30 minutes.

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