There are 48 people in a class. Everyone can play chess. The number of people who can play chess is twice as many as the number who can play go. There are three less people. The number of people who can play both kinds of chess is at most 9, but not less than 5. The number of people who can play go is () A. 20 B. 19 C. 11 or 13 D. 19 or 20

There are 48 people in a class. Everyone can play chess. The number of people who can play chess is twice as many as the number who can play go. There are three less people. The number of people who can play both kinds of chess is at most 9, but not less than 5. The number of people who can play go is () A. 20 B. 19 C. 11 or 13 D. 19 or 20

Suppose there are x people who can play go, then there are (2x-3) people who can play chess. From the meaning of the question, we can get: 5 ≤ x + (2x-3) - 48 ≤ 9, the solution is: 563 ≤ x ≤ 20, so we can get that there are 19 or 20 people who can play go