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Mathematics in Literature: Robinson Crusoe

Mathematics can be found in many famous literary works. In Robinson Crusoe, the main character uses counting, measuring, calculating distances, and managing supplies in order to survive on the island.

Robinson has enough food for 30 days if he eats 4 kg per day.After 10 days, he finds an extra 40 kg of food.For how many more days will the food last if he continues eating 4 kg per day?

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Robinson travels by boat for 4 hours at a speed of 7 km/h. What distance does he travel?

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Robinson builds a rectangular fence with a perimeter of 50 m.The length is 5 m greater than the width. What is the width of the fence?

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