Solution: If each coat is made of X meter cloth, then each pair of trousers is made of (X-0.3) meter cloth.

26X+26(X-0.3)=65

26X+26X-7.8=65

52X=65+7.8

X=72.8÷52

X= 1.4

Then, the fabric of each pair of trousers:1.4-0.3 =1.1m.