# SOLUTION: How long does it take for an account which is compounded continuously at 2.4% to quadruple if it doubles in 8.5 years?

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 Question 78004: How long does it take for an account which is compounded continuously at 2.4% to quadruple if it doubles in 8.5 years?Answer by scott8148(6628)   (Show Source): You can put this solution on YOUR website!a quadruple is just a double double...so double 8.5 is 17...was this a "trick" question?? the "doubling" time for the account is 8.5 yr, so every 8.5 yr the account value is twice what it was 8.5 yr ago 8.5 yr, X 2....17 yr, X 4....25.5 yr, X 8....34 yr, X 16....etc