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Mathematics, 02.08.2019 16:30 hayesgenniferozslxr

Ross is twenty years older than his niece krystal. krystal has worked out that in five years' time her uncle will be twice as old as she will be. find krystal's age. would be great if you could answer/explain this.

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Ross is twenty years older than his niece krystal. krystal has worked out that in five years' time h...
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