Melanie has twice as many cats as Annie, and Annie has three times fewer cats than Jacob. If Jacob has 90 cats, how many cats does Melanie have?
How many cats does Annie have? ** Annie has 90/3=<<90/3=30>>30 cats.
How many cats does Melanie have? ** Melanie has 30*2=<<30*2=60>>60 cats.
#### 60