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    Hi. I've been doing geometric sequences from my C2 book and finding them okay, however I'm completely stuck on what to do for the final 2 questions. If you can help, it will be hugely appreciated

    1) I invest £A into a bank at 3.5% rate per year. How long until I double my money?

    2) The fish in an area of the North Seavare reducing by 6% per year due to overfishing. How long before the fish stocks are halved?

    Thanks in advance!
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    (1) 1.035^n = 2
    (2) 0.94^n = 0.5
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    (Original post by ian.slater)
    (1) 1.035^n = 2
    (2) 0.94^n = 0.5
    Oh wow, so simple actually, thanks :-D +rep
 
 
 
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Updated: February 9, 2010
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