CREATE TABLE table_78505 ("Driver" TEXT, "Constructor" TEXT, "Laps" FLOAT, "Time/Retired" TEXT, "Grid" FLOAT)

When the driver richard attwood has a constructor of brm, what is the number of laps?
SELECT "Laps" FROM table_78505 WHERE "Constructor" = 'brm' AND "Driver" = 'richard attwood'
SELECT "Laps" FROM "table_78505" WHERE "Constructor" = 'brm' AND "Driver" = 'richard attwood'