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Diane is 23 years older than her daughter Amy. In 6 years, Diane will be twice as old as Amy. How old are they now?Pamela's age is two times Jiri's age. The sum of their ages is 15. What is Jiri's age?Carlo is now 10 years older than Edison. In 5 years, he will be twice as old as Edison's age. What are their ages?Devaughn is 11 years younger than Sydney. The sum of their ages is 53. What is Sydney's age?Ben is three years old. His brother is four times as old as Ben. How old is his brother?