If they were smart about this, they would do what police and fire departments across the nation have been forced to do - - give each of these democraphics a different test based on its stupidity level.
Actually, they generally give them the same test, then “race norm” the results. IOW, the curve is calculated separately for each racial group. Blacks who score 90 on the “black curve” are treated equally to white who score 90 on the “white curve,” even though 90 on the black curve is only 60 on the white curve. Or whatever the results.