user: Question: What Number of electorates (2009) has a District of Mathura, and a Name of Mant?
Columns: ['Constituency number', 'Name', 'Reserved for ( SC / ST /None)', 'District', 'Number of electorates (2009)']
Types: ['text', 'text', 'text', 'text', 'real']
Sample row: ['81', 'Chhata', 'None', 'Mathura', 258625.0]
SQL:

assistant: SELECT "Number of electorates (2009)" FROM "Table" WHERE "District" = 'Mathura' AND "Name" = 'Mant';