At the start the field already has N pounds of grass standing. The field grows Y pounds of grass per day. Let's say one cow can eat X pounds of grass per day. Now pay the man in the following way.ĭay 1: give him a single link (Pay = 1 link)ĭay 2: Exchange the single link with the double link (Pay = 2 links)ĭay 3: Give him a single link (Pay = 3 links)ĭay 4: Exchange the 3 links (single link and the 2 link chain)ĭay 5: Give him the single link (Pay = 5 links)ĭay 6: Exchange the single link for the double link (Pay = 6 links)ĭay 7: Give him the single link (Pay = 7 links) This will give you a single link (that has been cut), a chain of two links and a chain of four links. HOWEVER, one of our visitors has suggested that IF the worker agrees to not spend his pay until after the week is over AND to do an exchange most days, you can pay him each day by making only ONE cut in the chain. Then cutting each of those in the middle of the remaining two sections (of three links each) will divide the chain into individual links. So first cutting the middle (fourth) link will yield a single link and two chains 3 links long. When you cut a link, you can remove the adjacent link from each side. The chain can be divided with just three cuts. AND REMEMBER: You also have to count the time it takes to go back across the bridge with the flashlight! Find a logical solution where all four people reach the other side safely in 17 minutes or less-but this solution cannot include having any of them go only halfway across, or go across in the dark, or throw the flashlight across, etc. There are only 17 minutes before the lava destroys the bridge. Two people crossing the bridge will travel at the speed of the slower person. Person #1 takes 1 minute, person #2 takes 2 minutes, person #3 takes 5 minutes, and person #4 takes 10 minutes. ![]() The people, suffering from different injuries, travel across the bridge at different speeds. Therefore, after 2 people cross safely, one has to go back to bring the flashlight back to the other side. Since it's dark, they must use a flashlight to cross. The bridge can only support 2 people at a time. There's a footbridge that spans the canyon. Four people, carrying only one flashlight, run for their lives. The most common characteristic of these markets is providing visitors interesting and unusual experiences.A volcano erupts in the dark of the night. I have been to mountain market days in several mountain areas. I tasted it and bought some Mau Son wine and some Chi Lang custard-apples, a widely-known specialty of Lang Son province. If you go to a mountain market day and don’t try that dish, it’s a great pity. Visitor Nguyen Hoang said: “Tay and Nung ethnic people in Lang Son are famous for their roasted pork and duck. Ethnic artisans demonstrate traditional handicrafts on the spot. Visitors are intrigued and many show an interest in how these dishes are prepared.”Īt a mountain market day, you will see bamboo houses roofed with leaves, pack horses, and local specialty products such as herbal medicines, brocade fabric, and traditional clothing. But at a mountain market day at the Vietnam National Village for Ethnic Culture and Tourism, the farm produce and traditional dishes on display trigger an exchange of stories between locals and visitors. Nguyen Thanh Son, Director of the village's Management Board, said: “People usually think of buying or selling something at a market. “Lang Son mountain market day” is recreated in Hanoi. Northern ethnic minority groups like the Tay, Nung, Dao, and Mong and groups from the Central Highlands introduced visitors to their typical farm produce, customs, cuisine, folk games, and dances. Visitors can talk with ethnic minority people about their culture and experience a mountain market day, which is held on most major holidays.Ī festive mountain market called “Enjoying Independence Day” was held from August 31 to September 3 this year to celebrate the 73 rd anniversary of Vietnam’s National Day. ![]() The village is divided into ethnic village zones which recreate the houses and lifestyles of different ethnic groups. Located 40 km west of Hanoi, the Vietnam National Village for Ethnic Culture and Tourism is a great place to explore the cultures of Vietnam’s 54 ethnic groups. One corner of a mountain market day at the Vietnam National Village for Ethnic Culture and Tourism.
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