SOLUTION: If you take 1 penny and double it each day for 31 days. How much money will you have? Express in $.

Question 729333: If you take 1 penny and double it each day for 31 days. How much money will you have? Express in $.
Found 2 solutions by lynnlo, ikleyn:
Answer by lynnlo(4176)   (Show Source): You can put this solution on YOUR website!
$21,474,836.48
Answer by ikleyn(53538)   (Show Source): You can put this solution on YOUR website!
.
If you take 1 penny and double it each day for 31 days.
How much money will you have? Express in $.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

        The other person gave the answer 2147483648 in his post.

        Without making any calculations, I see and I am convinced that his answer is INCORRECT.

        How do I know it ?

Very simple. The answer is the sum 1 + 2 + 4 + 8 + . . . + = - 1. It is an odd number, while the other person provides an even number. The answer is cents, or 21,474,836.47 dollars.

Solved correctly.

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