Question

A survey asked a group of adults and youths if they prefer reading books printed on paper or electronic books.
27 youths said they preferred reading books printed on paper.
32 youths said they preferred reading electronic books
32 adults said they preferred reading electronic books
57 adults were surveyed.

Fill in the missing values

Answer 1

To fill in the missing values, we can summarize the information given in the survey:

1. **Youths:**
- Preferred paper books: 27
- Preferred electronic books: 32
- Total youths surveyed = 27 (paper) + 32 (electronic) = 59 youths

2. **Adults:**
- Preferred electronic books: 32
- Total adults surveyed = 57

Now, let's find out how many adults preferred paper books.

- Total adults surveyed: 57
- Adults preferring electronic books: 32

To find those who preferred paper books, we subtract the number of adults preferring electronic books from the total number of adults surveyed:

\[
\text{Adults preferring paper books} = \text{Total adults surveyed} - \text{Adults preferring electronic books}
\]
\[
\text{Adults preferring paper books} = 57 - 32 = 25
\]

### Summary of Results:
- **Youths:**
- Prefer paper books: 27
- Prefer electronic books: 32
- Total youths: 59

- **Adults:**
- Prefer paper books: 25
- Prefer electronic books: 32
- Total adults: 57

Now, we have filled in the missing values!