Question

Трое рабочих за два часа выкопали четыре ямы. Сколько ям выкопают шесть рабочих за пять часов?

Answer 1

3/2 = 1.5 - три землекопа выкапывают за 1 час 
1.5/3 = 0.5 - выкапывает один землекоп за 1 час 
0.5*6*5 = 15 - 6 за 5 часов 

Answer 2

Problem Analysis

We are given that three workers dug four holes in two hours. We need to determine how many holes six workers can dig in five hours.

Solution

To solve this problem, we can use the concept of worker-hours. The number of worker-hours is the product of the number of workers and the number of hours they work. If we assume that the rate of work is constant, we can use the ratio of worker-hours to determine the number of holes.

Let's calculate the worker-hours for the given scenario: - Three workers dug four holes in two hours. This means they worked for a total of 3 * 2 = 6 worker-hours.

Now, let's calculate the number of holes that can be dug by six workers in five hours: - We can set up a proportion using the worker-hours: - 6 worker-hours (from the given scenario) corresponds to 4 holes. - We need to find the number of holes for 6 workers in 5 hours.

Using the proportion, we can calculate the number of holes: - (6 worker-hours) / (4 holes) = (6 workers) / (5 hours) - Cross-multiplying, we get: - (6 worker-hours) * (5 hours) = (4 holes) * (6 workers) - 30 worker-hours = 24 holes - Therefore, six workers can dig twenty-four holes in five hours.

Answer: Six workers can dig twenty-four holes in five hours.