Question

Две швеи работали одинаковое время. Первая сшила за это время 12 наволочек, по 3 наволочки в час. Сколько пододеяльников сшила за это время вторая швея, если каждый час она шила по 2 пододеяльника?

Answer 1

1). 12:3=4 часа 2). 2*4=8 пододеяльников.

Answer 2

Problem Analysis

We are given that two seamstresses worked for the same amount of time. The first seamstress sewed 12 pillowcases in that time, at a rate of 3 pillowcases per hour. We need to determine how many duvet covers the second seamstress sewed in the same amount of time, given that she sewed 2 duvet covers per hour.

Solution

To solve this problem, we can use a simple ratio and proportion calculation. We know that the first seamstress sewed 12 pillowcases in the same amount of time that the second seamstress sewed duvet covers. We also know that the first seamstress sewed at a rate of 3 pillowcases per hour, while the second seamstress sewed at a rate of 2 duvet covers per hour.

Let's set up the proportion:

Pillowcases sewn by the first seamstress / Rate of the first seamstress = Duvet covers sewn by the second seamstress / Rate of the second seamstress

Plugging in the given values:

12 pillowcases / 3 pillowcases per hour = x duvet covers / 2 duvet covers per hour

Simplifying the proportion:

4 = x / 2

To solve for x, we can cross-multiply:

4 * 2 = x

x = 8

Therefore, the second seamstress sewed 8 duvet covers in the same amount of time that the first seamstress sewed 12 pillowcases.

Answer

The second seamstress sewed 8 duvet covers in the same amount of time that the first seamstress sewed 12 pillowcases.