Question

Задача: У Лизы и Иры вместе 50 наклеек, у Иры и Кати вместе 70 наклеек, у Кати и Тани вместе 100 наклеек, у Тани и Оли вместе 110 наклеек, у Оли и Лизы вместе 70 наклеек. Сколько наклеек у Лизы?Записать решение и ответ.

Answer 1

Problem:

У Лизы и Иры вместе 50 наклеек, у Иры и Кати вместе 70 наклеек, у Кати и Тани вместе 100 наклеек, у Тани и Оли вместе 110 наклеек, у Оли и Лизы вместе 70 наклеек. Сколько наклеек у Лизы? Записать решение и ответ.

Solution:

Let's solve this problem step by step.

1. We are given that Лиза (Liza) and Ира (Ira) together have 50 stickers. 2. We are also given that Ира (Ira) and Катя (Katya) together have 70 stickers. 3. Additionally, Катя (Katya) and Таня (Tanya) together have 100 stickers. 4. Moreover, Таня (Tanya) and Оля (Olya) together have 110 stickers. 5. Finally, Оля (Olya) and Лиза (Liza) together have 70 stickers.

To find the number of stickers that Лиза (Liza) has, we need to subtract the number of stickers that Оля (Olya) has from the total number of stickers that Лиза (Liza) and Оля (Olya) have together.

Let's calculate it step by step:

1. The total number of stickers that Лиза (Liza) and Ира (Ira) have together is 50. 2. The total number of stickers that Ира (Ira) and Катя (Katya) have together is 70. 3. The total number of stickers that Катя (Katya) and Таня (Tanya) have together is 100. 4. The total number of stickers that Таня (Tanya) and Оля (Olya) have together is 110. 5. The total number of stickers that Оля (Olya) and Лиза (Liza) have together is 70.

Now, let's calculate the number of stickers that Лиза (Liza) has:

1. The total number of stickers that Лиза (Liza) and Ира (Ira) have together is 50. 2. The total number of stickers that Оля (Olya) and Лиза (Liza) have together is 70.

To find the number of stickers that Лиза (Liza) has, we subtract the number of stickers that Оля (Olya) has from the total number of stickers that Лиза (Liza) and Оля (Olya) have together:

Лиза (Liza) has 20 stickers.

Answer:

У Лизы 20 наклеек.