user: Question: How many 100 for the player with 3 50s?
Columns: ['Player', 'County', 'Matches', 'Innings', 'Runs', 'Average', 'Highest Score', '100s', '50s']
Types: ['text', 'text', 'real', 'real', 'real', 'text', 'text', 'real', 'real']
Sample row: ['Barry Richards Category:Articles with hCards', 'Hampshire', 12.0, 11.0, 592.0, '65.77', '155*', 3.0, 0.0]
SQL:

assistant: SELECT "100s" FROM "Table" WHERE "50s" = 3.0;