NEW : Death toll rises to 75 in floods . More than 3 inches of rain accumulated in Rio 's western regions , with more expected . The flooding has left at least 25 people dead and dozens missing. Rio de Janeiro State governor declares 3 days of mourning , calls up rescue teams .
NEW : Death toll rises to 75 in floods . More than 3 inches of rain accumulated in Rio 's western regions , with more expected . Death toll from mudslide at upscale resort in Angra dos Reis is 41 ; dozens injured . Rio de Janeiro State governor declares 3 days of mourning , calls up rescue teams .