In Fifi's closet, she hangs all of her clothes on colored plastic hangers.  She has clothes hanging on 7 pink hangers, 4 green hangers, one less blue hanger than there are green hangers, and one less yellow hanger than there are blue hangers.  What is the total number of colored hangers in Fifi's closet?
With 4 green hangers, 1 less blue hanger than there are green hangers is 4-1=<<4-1=3>>3 blue hangers.
With 3 blue hangers, 1 less yellow hanger less than there are blue hangers is 3-1=<<3-1=2>>2 yellow hangers.
With 7 pink hangers, the total number of colored hangers in Fifi's closet is 7+4+3+2=<<7+4+3+2=16>>16 hangers.
#### 16