Question

Помогите задания 5 пожалоста срочно очен 5 задание в группе туристов 18 человек владеют английским языком,17 французским,17немецким,10-французским и немецким языками ,6 человек английским и немецким,3 человека-французским и английским. один человек знает все три языка.сколько туристов в группе?

Answer 1

Ответ:

Я решила два способа, думаю что помогла бы тебе, ведь я отвечаю удалённуму аккаунту :(((

Пошаговое объяснение:

Надеюсь помогла другим =))

Answer 2

To solve this problem, we can use the principle of inclusion-exclusion. Let's break down the information given:

- 18 tourists speak English. - 17 tourists speak French. - 17 tourists speak German. - 10 tourists speak both French and German. - 6 tourists speak both English and German. - 3 tourists speak both French and English. - 1 tourist speaks all three languages.

We need to find the total number of tourists in the group.

Solution:

To find the total number of tourists, we can add up the number of tourists who speak each language and then subtract the number of tourists who speak multiple languages to avoid double-counting.

Let's calculate it step by step:

1. Start with the number of tourists who speak English: 18. 2. Add the number of tourists who speak French: 17. 3. Add the number of tourists who speak German: 17. 4. Subtract the number of tourists who speak both French and German (to avoid double-counting): -10. 5. Subtract the number of tourists who speak both English and German (to avoid double-counting): -6. 6. Subtract the number of tourists who speak both French and English (to avoid double-counting): -3. 7. Add the number of tourists who speak all three languages (to correct for the double subtraction): +1.

Now, let's calculate the total number of tourists:

18 + 17 + 17 - 10 - 6 - 3 + 1 = 34

Therefore, there are 34 tourists in the group.

Please let me know if you need any further assistance!