Question

Помогите решить задачу: В магазин привезли 2 целые 2/3 тонны арбузов.В первый день было продано 60% всех арбузов.На следующий день было продано 10/11 остатка.Сколько килограммов арбузов остались непроданными? Пожалуйста помогите!

Answer 1

1. Сколько арбузов было продано в первый день?
                                                      2 2/3 * 0,6 = 8/3 * 3/5 = 8/5 = 1,6 (т)
2. Сколько арбузов осталось?
                                             2 2/3 - 1,6 = 8/3 - 8/5 = (40-24)/15 = 1 1/15 (т)
3. Сколько арбузов продали во второй день?
                                             1 1/15 * 10/11 = 16/15 * 10/11 = 32/33 (т)
4. Сколько арбузов не продали?
                                      16/15 - 32/33 = (528-480)/495 = 48/495 = 16/165 (т)

Ответ: 16/165 т или 97 кг арбузов не продали.

Answer 2

Problem Analysis

To solve this problem, we need to calculate the weight of the watermelons that remained unsold after two days of sales. We are given that 2 and 2/3 tons of watermelons were delivered to the store. On the first day, 60% of all the watermelons were sold, and on the second day, 10/11 of the remaining watermelons were sold. We need to find the weight of the unsold watermelons.

Calculation

Let's break down the problem step by step:

1. Calculate the weight of the watermelons delivered to the store: - 2 tons + 2/3 ton = 2 + 2/3 = 6/3 + 2/3 = 8/3 tons

2. Calculate the weight of the watermelons sold on the first day: - 60% of 8/3 tons = (60/100) * (8/3) = (3/5) * (8/3) = 24/15 tons

3. Calculate the weight of the watermelons remaining after the first day: - Weight after the first day = Total weight - Weight sold on the first day - Weight after the first day = 8/3 tons - 24/15 tons = (40/15 - 24/15) tons = 16/15 tons

4. Calculate the weight of the watermelons sold on the second day: - 10/11 of 16/15 tons = (10/11) * (16/15) = 160/165 tons

5. Calculate the weight of the watermelons remaining after the second day: - Weight after the second day = Weight after the first day - Weight sold on the second day - Weight after the second day = 16/15 tons - 160/165 tons = (176/165 - 160/165) tons = 16/165 tons

Answer

Therefore, there are 16/165 tons of watermelons that remained unsold.

Please let me know if you need any further assistance!