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Now given a that a guest on horseback rides 300 li in a day. The guest leaves his clothes behind. The host discovers them after 1/3 day, and he starts out with the clothes. As soon as he catches up with the guest, the host gives back the clothes and returns home in 3/4 day. Assume the host rides without a stop. Tell how far can he go in a day? (China, Nine Chapters on the Mathematical Art, c. 100 BCE)
Click here to reveal the answerunknown, "Beyond the call of duty," Loci (September 2008)