On Friday night, Maria sells of her stock of apples. On Saturday, she sells of the remaining apples. What fraction of her original stock of apples does Maria have left for sale on Sunday?

Michael Phelps’ workout program consists of Aerobics, Bench Presses, and Cycling. Aerobics and Bench Presses take a total of 24 minutes, Bench Press and Cycling take a total of 40 minutes, and the entire workout takes a total of 56 minutes. How many minutes are required for the Bench Press portion of his workout?