Question

Одна швея может выполнить весь заказ за 20 дней 2 для выполнения заказа требуется 3/5 этого времени 3 в 2 1/2 раза больше времени чем второе Сколько времени выполнит весь заказ 3.000 работая совместно

Answer 1

1) 20 : 5 × 3=12 (дней) - время,за которое вторая швея выполнит заказ.

2) 12 × 2.1/2 = 30 (дней) - уйдёт на выполнение задаза третьй швеёй.

3) 1 : 20 = 1/20 - продуктивность первой швеи.

4) 1 : 12 = 1/12 - продуктивность второй швеи.

5) 1 : 30 = 1/30 - продуктивность третьей швеи.

6) 1/20 + 1/12 + 1/30 = 10/60 = 1/6

Ответ: за 6 дней они закончат работать над заказом,работая вместе

Answer 2

Problem Statement

You want to know how long it will take to complete an order of 3,000 items if one seamstress can complete the entire order in 20 days, and the second seamstress takes 3/5 of that time, which is 2 1/2 times longer than the first seamstress.

Solution

To find the time it takes for the second seamstress to complete the order, we need to calculate 3/5 of the time taken by the first seamstress and then multiply it by 2 1/2.

Let's break down the solution step by step:

1. Find the time taken by the first seamstress: - The first seamstress can complete the entire order in 20 days.

2. Find 3/5 of the time taken by the first seamstress: - Multiply 20 by 3/5 to get the time taken by the second seamstress: 20 * 3/5 = 12 days.

3. Find 2 1/2 times longer than the time taken by the first seamstress: - Multiply 12 by 2 1/2 to get the time taken by the second seamstress: 12 * 2 1/2 = 30 days.

Therefore, the second seamstress will take 30 days to complete the entire order of 3,000 items when working together with the first seamstress.

Please let me know if you need any further assistance!