## Task B-1.5.

During the French Revolution, there was an idea to divide the day (a period of 24 hours) into 10 hours, and each hour into 100 minutes. Although this idea did not catch on, in Marko's school, they sometimes use such a "decimal clock." When Marko started solving the problem on the "decimal clock," it was exactly 4.5 hours. When he finished, the "regular clock" showed exactly 11:15. Petra started solving the same problem at noon by "regular time," and finished at 5.2 hours on the "decimal clock." Who of the two solved the problem faster and by how much faster in "regular time"? (Note: time is measured from midnight on both clocks.)