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1.) Jed is 6 years older than Jacob. If the sum of their ages is 50, what are their ages?

2.) Jane is twice older than her daughter. What are their ages if the sum of their ages is 60?

3.) The sum of the present ages of Jared and Jonas is 41. In 5 years, Jared will be twice the age of Jonas, what are their ages in the present?

4.) The difference between the sum of the ages of Jonas and Jico, and the age of Jico is 30. How old is Jonas?