<PRE><B>Question 1001204</B>
 If you were given 1 penny on Monday, 2 pennies on Tuesday, 4 pennies on Wednesday, 8 pennies on Thursday, 16 pennies on Friday,etc and you saved all of them and this process continued, how long would it take to save one million dollars 
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Geometric Series:: 1+2+4+.... = 100,000,000
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S(n) = a[(r^n-1)/(r-1)]
S(n) = 100,000,000
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a = 1
r = 2
Find n::
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100,000,000 = [2^n - 1]/[1]
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2^n-1 = 100,000,000
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2^n = 100,000,001
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n = log(100,000,001)/log(2)
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n = 8/0.3010
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n = 26.58 or the 27th day
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Cheers,
Stan H.
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