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What is the maximum distance that the man can cover?

A man is riding a two-wheeler scooter on a challenging road. The tires/tyres wear out quickly on this road. He has 1 spare tire so 3 tires in total. Each tyre can go a maximum of 10 km. What is the maximum distance that the man can cover?

Correct answers: 139

The first user who solved this task is Maja Inkret.

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Pastry chefs

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Sir George Thomas Beilby

Born 17 Nov 1850; died 1 Aug 1924 at age 73.Scottish industrial chemist who developed (1890) the process of manufacturing potassium cyanide (widely used to extract gold from low-grade ore) by passing ammonia over a heated mixture of charcoal and potassium carbonate. Beilby entered the oil-shale industry in 1869 and greatly increased the yield of paraffin and ammonia by introducing the continuous retort. Noting the destruction of metals by ammonia at high temperatures, Beilby researched the flow of solids. He inferred that when a solid is caused to flow, as in polishing, the crystalline surface is broken down to a harder and denser layer. Although much criticized, this theory explained the hardening of metals under cold working and gave valuable stimulus to further research.

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