Consider following polmers : 

Polythene, PVC, Bakelite, Nylon-6,6, Dacron Buna-N, Buna-S

Neopren, Teflon, Meta.ldehyde 

Number of homopolymer= X 

Number of co-polymer= Y 

Number of addition polymer c: J 

Number of condensation polymer = K
 'XYJK' will be your· answer.

A polymer that contains several copies of the same repeating unit is called a homopolymer. When two (or more) distinct kinds of monomers are joined together in a single polymer chain, a copolymer is created.
a polymer that develops just by joining monomers together—other products are not produced at the same time. A type of step-growth polymerization known as condensation polymerization occurs when smaller molecules or monomers interact with one another to create bigger structural units (often polymers) while also releasing by-products like water or molecules of methanol.

There are 4 homopolymers.
There are six copolymers.
There are six additional polymers.
Condensation polymer count is four.