Question

ЗАДАЧА! Мастер и его ученик три часа вытачивали детали.Мастер всё это время работал с производительностью 40 деталей в час,а его ученик за это же время сделал 3\5 работы,выполненной мастером.Сколько всего деталей сделали мастер и его ученик за три часа?

Answer 1

1)40/5*3=24 детали сделал ученик
2)40*3=120 деталей сделал мастер за 3 часа
3)24*3=72 детали сделал ученик за 3 часа
4) 72+120= 192 детали сделали вместе 
или так  
1)40/5*3=24 детали сделал ученик
2) (40*3)+(24*3)=192 детали

Answer 2

Problem Analysis

We are given that a master and his apprentice worked for three hours to produce some parts. The master worked at a rate of 40 parts per hour, while the apprentice completed 3/5 of the work done by the master in the same amount of time. We need to determine the total number of parts produced by the master and his apprentice in three hours.

Solution

Let's break down the problem step by step:

1. The master worked for three hours at a rate of 40 parts per hour. Therefore, the master produced a total of 40 x 3 = 120 parts in three hours. 2. The apprentice completed 3/5 of the work done by the master in the same amount of time. This means that the apprentice completed 3/5 x 120 = 72 parts in three hours.

3. To find the total number of parts produced by the master and his apprentice, we add the number of parts produced by each of them. Therefore, the total number of parts produced is 120 + 72 = 192 parts.

Answer

The master and his apprentice produced a total of 192 parts in three hours.