(1) Total number of chickens, ducks and geese: 30÷ 15%=200 (only)

Number of chickens: 200×65%= 130 (only)

Number of ducks: 200×20%=40.

(2) The percentage of geese less than ducks: 20%- 15%=5%.

There are fewer geese than ducks: 40-30= 10 (only)