Thread: Prove your math skills
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  #23  
Old 10-12-2005, 10:09 PM
gol4pro gol4pro is offline
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Join Date: Apr 2005
Posts: 109
Default Re: Prove your math skills
Pretty basic progression.

n1 = 10
n2 = 12
n(x) = 8 + (n)(2)

40 total terms.

n39 = 86
n40 = 88

88+10 = 98

98*(40/2) = 1960.
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