A veterinarian surveys 26 of his patrons. He discovered that 14 have dogs, 10 have cats, and 5 have fish. Four have dogs and cats, 3 have dogs and fish, and one has a cat and a fish. If no one has all three kinds of pets, how many patrons have none of these pets?



5 doesn't have neither of the three pets
solution pls.
no need na pala thanks.. can u go back to the one with the question How many Euclid only? thanks