PHILADELPHIA (AP).- Ruth Perelman, who along with her philanthropist husband was a major donor to institutions in the city of Philadelphia, died Sunday at the Hospital of the University of Pennsylvania. She was 90. Raymond Perelman told The Associated Press on Sunday that the couple had been married for 70 years after they met in Greensboro, N.C., where she was going to college and he was running a plant for his father. “She was well-loved by everybody and was also generous and participated with me in all of our philanthropies and charities,” he said from his home in the tony Rittenhouse Square neighborhood. In May, the University of Pennsylvania announced