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If the sum will be 60 in 6 years, the sum is currently:
60yrs - 6yrs for Gerardo - 6 yrs for Raquel = 48 yrs
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G=Gerardo's age; R=Raquel's age=G-8 yrs
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G+R=48 yrs.
G+(G-8yrs)=48yrs
2G=56yrs
G=28 yrs
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ANSWER: Gerardo is 28 years old
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CHECK:
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R=G-8yrs=28yrs-8yrs=20yrs
Raquel is 20 years old.
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(G+6yrs)+(R+6yrs)=60yrs
(28yrs+6yrs)+(20yrs+6yrs)=60yrs
34yrs+26yrs=60yrs
60yrs=60yrs
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