Question

Производитель лет старого станкра 15 дет./ч .Производитель станка нового станка на 3 дет./ч больше .За сколько минут старый станок обработает такое количество деталей которое новый станок обрабатывает за 2 ч 30 мин

Answer 1

Составим таблицу V-кол-во деталей в час, T-время , S-кол-во изготовленных деталей.
                              V                                        T                                      S
старый станок    15дет/ч                                                                    
новый станок      18дет/ч(15+3)                  2часа 30 минут            
  теперь найдем кол-во изготавляемых деталей (s) нового станка
s=V*T   S=18дет/ч * 2.5часа=45 деталей
у старого станка столько же=45 деталей,но нам необходимо найти время старого станка.T=S/V   T=45деталей/15дет/ч=3часа
в ответ пишем 180 минут (3часа=180 минут)

Answer 2

Calculation of Production Time for Old Machine

To calculate the time it takes for the old machine to process the same number of parts as the new machine, we need to consider the production rates of both machines.

Given: - The old machine produces 15 parts per hour. - The new machine produces 3 parts per hour more than the old machine.

Let's calculate the production rate of the new machine: - The old machine produces 15 parts per hour. - The new machine produces 3 parts per hour more than the old machine. - Therefore, the production rate of the new machine is 15 + 3 = 18 parts per hour.

Now, let's calculate the number of parts processed by the new machine in 2 hours and 30 minutes: - 2 hours and 30 minutes is equivalent to 2.5 hours. - The new machine produces 18 parts per hour. - Therefore, the new machine will process 18 * 2.5 = 45 parts in 2 hours and 30 minutes.

To find out how long it will take for the old machine to process the same number of parts, we can use the formula:

Time = Number of parts / Production rate

Let's calculate the time it takes for the old machine to process 45 parts: - Number of parts: 45 - Production rate of the old machine: 15 parts per hour

Using the formula, we can calculate the time:

Time = 45 parts / 15 parts per hour = 3 hours

Therefore, it will take the old machine 3 hours to process the same number of parts that the new machine processes in 2 hours and 30 minutes.

Please note that the above calculations are based on the given information and assumptions.