# SOLUTION: Ann's age is seven-tenths of Bills age. In 4 years Ann's age will be eight-elevenths of Bills age. how old is Bill now?

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 Question 129974: Ann's age is seven-tenths of Bills age. In 4 years Ann's age will be eight-elevenths of Bills age. how old is Bill now?Answer by josmiceli(9661)   (Show Source): You can put this solution on YOUR website!Let = Ann's age now Let = Bill's age now In 4 years Ann will be In 4 years Bill will be substitute in the 1st equation for in the last equation multiply both sides by Bill is 40 now check: OK