Question

Survey of 140 people:

51 had a dog,
40 had a cat,
16 had a dog and a cat,
56 had neither a dog nor a cat nor a parakeet,
2 had a dog and a cat and a parakeet.

How many had a parakeet only?

Answer 1

To find the number of people who had a parakeet only, subtract the number of people who had both a dog and a cat from the total number of people who had a dog or a cat. The answer is 75 people.

Step-by-step explanation:

To find the number of people who had a parakeet only, we need to subtract the number of people who had both a dog and a cat from the total number of people who had a dog or a cat.

From the given information, we know that 51 people had a dog, 40 people had a cat, and 16 people had both a dog and a cat.

To calculate the number of people who had a dog or a cat, we add the number of people with a dog and the number of people with a cat: 51 + 40 = 91.

Now, we can subtract the number of people who had both a dog and a cat from the total: 91 - 16 = 75.

Therefore, 75 people had a parakeet only.