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George is 60. His daughter Jessica is 3/5 of his age. His grandson Luke is 4/15 of his age. How many years older than Luke is Jessica?

Respuesta :

If George is 60, Jessica is 3/5 or 0.6, so Jessica is (60*0.6=36). Luke is 4/15, so he is 16.
Then we have results.
Jessica=36
Luke=16
Jessica is 20 years older than Luke.

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