The National Library of China consists of four major sections, each occupying different floors of a seven-storey building. A study shows that the average total distance covered by visitors per day among different sections of the library is around 1,500 km. The following new layout is being proposed to reduce the distance covered: lop52

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Book Average Sections distance (meter) Sixth floor - Others Fith foor 50 Fourth floor Ancient 75 Third floor- 50 100 Second floor- Chinese 75 First floor- Ground floor- 50 Children's Since some sections are spread across two different floors and there are intra-section distances to be considered too. The num- ber of moves and distances are shown in the following tables. Average Distances (meters) CHILDREN'S CHINESE ANCIENT OTHERS Children's 10 50 75 100 Chinese 50 20 50 75 Ancient 75 50 20 50 Others 100 75 50 20 Average number of moves/day CHILDREN'S CHINESE ANCIENT OTHERS Children's 2000 500 300 200 Chinese 700 4000 1500 1800 Ancient 500 1500 1500 1500 Others 300 2000 1200 2000 Can this new layout reduce the average total distance covered by visitors per day?