1。 Two thirds and five sixths have the same score. Two thirds equals four sixths. Four-sixths is less than five-sixths, so Liu Yun did it quickly. 2。 Two thirds equals forty minutes, and five sixths equals fifty minutes. Forty is smaller than fifty, so Wang Hong can calculate quickly. 3。 It's hard to fight. Do not fight. 4。 It's hard to fight, just score yourself if you don't fight. 5。 Use your own organization!