Czech crowns
Small Petra saves money. Grandfather gives her ten crowns. Petra asked his older sister to let her calculate how much he had saved. Sister told her that he had less than 30 crowns. If the sum is divided by three, leave one crown. Suppose the sum is divided by the five left with her two. How much has Petra saved up?
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algebrabasic operations and conceptsUnits of physical quantitiesGrade of the word problem
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