Question

In a class there are 63 student with dogs, cat, fish or combination above. 13 student don't have pet. 21 student have fish but no cats. 19 student either have dogs and no fish or cats and fish. How many student only have cat?

Answer 1

23 students

Explanation:

Keep in mind 13 students DONT have pets, so these 13 students aren't part of the 63 students that have at least one pet.

63-21-19=

63-(21+19)=

63-40=23 students

There are a total of 40 students that don't have just cats.

There are 23 students remaining.