Question

в течении дня первые 2часа рабочий делал 12деталей в час.следующие 3ч-по10 деталей.а последние 3ч-по 7 деталей в час.сколько деталей в среднем сделал рабочий за 1час в этот день?

Answer 1

В течение дня рабочий сделал 75 деталей: за 2 часа-24 детали, за последующие 3 часа-30 детелей, за последние 3 часа-21 деталь. 24+30+21=75. Всего работал в течение дня 8 часов: 2+3+3= 8. В среднем рабочий изготовлял в течение дня по 9,375 деталей в час: 75:8=9,375

Answer 2

Calculation of Average Number of Parts Produced per Hour

To calculate the average number of parts produced per hour, we need to find the total number of parts produced and divide it by the total number of hours worked.

According to the given information: - In the first 2 hours, the worker produced 12 parts per hour. - In the next 3 hours, the worker produced 10 parts per hour. - In the last 3 hours, the worker produced 7 parts per hour.

To find the total number of parts produced, we can add up the number of parts produced in each time period: - In the first 2 hours: 2 hours * 12 parts/hour = 24 parts. - In the next 3 hours: 3 hours * 10 parts/hour = 30 parts. - In the last 3 hours: 3 hours * 7 parts/hour = 21 parts.

The total number of parts produced is 24 + 30 + 21 = 75 parts.

To find the average number of parts produced per hour, we divide the total number of parts produced by the total number of hours worked: - Total number of hours worked = 2 hours + 3 hours + 3 hours = 8 hours. - Average number of parts produced per hour = 75 parts / 8 hours = 9.375 parts per hour.

Therefore, the worker produced an average of 9.375 parts per hour on that day.