Friends 5
Erik is friends with two girls, Markéta and Lenka, and two boys, Tomáš and Robo. When his mother wanted to know how old these children are, he told her a riddle: Tomáš is two years older than Robo. The sum of the boys' ages is the same as the sum of the girls' ages. Markéta is twice as old as Lenka. A year ago, Tomáš had twice as much as Lenka had then. How old are the children?
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algebraUnits of physical quantitiesGrade of the word problem
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