user: Question: What is the total qual where the grid number is 24?
Columns: ['Grid', 'Constructor', 'Qual', 'Rank', 'Laps', 'Time/Retired']
Types: ['real', 'text', 'real', 'real', 'real', 'text']
Sample row: [2.0, 'Kurtis Kraft - Offenhauser', 135.03, 5.0, 200.0, '3:57:38.05']
SQL:

assistant: SELECT SUM("Qual") FROM "Table" WHERE "Grid" = 24.0;