SOLUTION: Jessy is 9 years old this year, her sister is 16 years old. In 7 years' time, how many years will her sister be older than Jessy?

Question 323926: Jessy is 9 years old this year, her sister is 16 years old. In 7 years' time, how many years will her sister be older than Jessy?
Answer by Edwin McCravy(20056) (Show Source): You can put this solution on YOUR website!
Jessy is 9 years old this year, her sister is 16 years old. In 7 years' time, how many years will her sister be older than Jessy?
`
Her sister is 7 years older than she is now, so her sister will always be
7 years older than her sister, whether in 7 years' time or in 20 years' time, or even in 50 years' time.
`
Edwin
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