Jenny's grandmother has $24$ cats.  Seventeen of the cats do not catch mice.  Ten of the cats have black fur.  What is the smallest possible number of cats that do not catch mice that have black fur?
Question:
Jenny's grandmother has $24$ cats.  Seventeen of the cats do not catch mice.  Ten of the cats have black fur.  What is the smallest possible number of cats that do not catch mice that have black fur?
Answer:
Let's think step by step.

user
3
Jenny's grandmother has $24$ cats.  Seventeen of the cats do not catch mice.  Ten of the cats have black fur.  What is the smallest possible number of cats that do not catch mice that have black fur?
train