Question

ПОЖАЛУЙСТА ПОМОГИТЕ !! ОЧЕНЬ НУЖНО!!каждая семья проживающая в нашем доме,подписались на газету, журнал или на то и другое. 75 семей получают газеты, 26 семей журналы, 18 семей и газеты и журналы. Сколько семей проживает в нашем доме?

Answer 1

Задача с подвохом.Я считаю что 18 семей входят тем 75 семьям которые получают газету и тем 26 семьям которые получают журналы
75-18=57 семьи(которые получают только газету)
26-18=8 семьи получают только журналы
57+8+18=83 семьи (проживают в доме)

Answer 2

Problem Analysis

We are given the following information: - There are 75 families that receive newspapers. - There are 26 families that receive magazines. - There are 18 families that receive both newspapers and magazines.

We need to determine the total number of families living in the house.

Solution

Let's solve this problem step by step.

1. First, we know that there are 75 families that receive newspapers. This means that at least 75 families live in the house.

2. Next, we know that there are 26 families that receive magazines. This means that at least 26 families live in the house.

3. However, we also know that there are 18 families that receive both newspapers and magazines. This means that these 18 families are counted twice in the previous counts.

4. To find the total number of families living in the house, we need to subtract the number of families that receive both newspapers and magazines from the total count of families receiving newspapers and magazines.

5. Let's calculate the total number of families living in the house:

- Number of families receiving newspapers = 75 - Number of families receiving magazines = 26 - Number of families receiving both newspapers and magazines = 18

Total number of families living in the house = (Number of families receiving newspapers + Number of families receiving magazines) - Number of families receiving both newspapers and magazines

Total number of families living in the house = (75 + 26) - 18

Total number of families living in the house = 101 - 18

Total number of families living in the house = 83

Answer

There are 83 families living in the house.