A residential area will hold a "Welcome to the Olympics" knowledge contest. When purchasing prizes, the property staff learned the following information: (

Solution: (1) Set a box of "Fuwa" X yuan and a badge Y yuan.

Judging from the meaning of the question,

Solution:

A: A box of Fuwa 120 yuan and a badge 10 yuan;

(2) If there is a second prize, there will be a third prize (20-2-a).

Judging from the meaning of the question,

Solution: 9 ≤a≤ 10,

∫a is an integer,

∴a= 10，

Then the number of winners of the third prize is: 20-2- 10=8 (name),

A: If there are 10 second prizes, there will be 8 third prizes.