Table:
text: 1975 French Grand Prix
Classification
Classification
Driver Constructor_ Laps Time_Retired Grid
Mark Donohue Penske - Ford 6 Transmission 18
Tom Pryce Shadow - Ford 2 Transmission 6
François Migault Williams - Ford 0 Non Starter 24

Question: How many laps were there in the 1975 French Grand Prix when the grid was 24?