Question

Помогите решить задачу! Рабочий должен был сделать 120 деталей за 5 часов, первые 3 часа он работал по плану, а затем увеличил проозв-ть труда на 8 деталей в час и улинил на 3 часа время работы. Сколько деталей сделал рабочий?

Answer 1

1. 120/5*3=72 дет. - за первые 3 часа 2. (120/5+8)*5=165 дет. - за последующие 5 часов 3. 72+165=237 дет. - за 8 часов работы.

Answer 2

Problem Analysis

To solve this problem, we need to calculate the total number of parts the worker made. We know that the worker was supposed to make 120 parts in 5 hours. However, for the first 3 hours, the worker worked at the planned rate, and then for the remaining 2 hours, the worker increased productivity by 8 parts per hour but reduced the working time by 3 hours. We need to calculate the total number of parts made by the worker.

Calculation

Let's break down the calculation step by step:

1. Calculate the number of parts made in the first 3 hours at the planned rate: - Number of parts made in the first 3 hours = (Number of hours worked) x (Rate of production per hour) - Number of parts made in the first 3 hours = 3 hours x (120 parts / 5 hours) - Number of parts made in the first 3 hours = 3 hours x 24 parts/hour - Number of parts made in the first 3 hours = 72 parts

2. Calculate the number of parts made in the remaining 2 hours at the increased rate: - Number of parts made in the remaining 2 hours = (Number of hours worked) x (Rate of production per hour) - Number of parts made in the remaining 2 hours = 2 hours x (8 parts/hour) - Number of parts made in the remaining 2 hours = 16 parts

3. Calculate the total number of parts made by the worker: - Total number of parts made = Number of parts made in the first 3 hours + Number of parts made in the remaining 2 hours - Total number of parts made = 72 parts + 16 parts - Total number of parts made = 88 parts

Answer

The worker made 88 parts in total.

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