g Tyres และ Minardi m187 ใช้ไปกี่ปี?ไม่จำเป็นต้องใช้โต๊ะทั้งหมด
How many years were g Tyres and Minardi m187 used?It is not neccessary to use all the tables.
 table_name_82:  (year [ INTEGER ] tyres [ VARCHAR ] chassis [ VARCHAR) ]
SELECT AVG(year) FROM table_name_82 WHERE tyres = "g" AND chassis = "minardi m187"