Bob, Jane, and GregPro Problems > Math > Algebra > Equations > Systems of Equations > Word Problems > Age and Time
Bob, Jane, and Greg
The sum of Bob’s age and Jane’s age is twice Greg’s age. In eight years, Bob will be as old as Greg was five years ago. Next year, Greg will be half as old as Jane will be in nine years. How old is each person?
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"Remember the Good Ol' Days?" Grandpa said.
"Which days were those?" I asked.
"The days when you were one fourth my age," Grandpa said. Then he added, "Also, they were the days when your age, my age, and grandma's age all added to 100."
"Oh, pooh," said Grandma. "That's nothing. In those days, your grandpa's age, minus my age, was two-thirds your age."
"But these are okay days too," I said. "because now my age and grandpa's age add to 100!"
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