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Message
Need help with a Math problem
Posted on 8/9/16 at 6:21 pm
Posted on 8/9/16 at 6:21 pm
I don't remember the formula (or the answer), but if you place a penny on the first square of a chess board, then two cents on the next square, four on the next, etc, how much money would you have at the end of the board?
This post was edited on 8/9/16 at 6:45 pm
13
Posted on 8/9/16 at 6:24 pm to theantiquetiger
2^(64 -1) = 2^63 = a bunch
This post was edited on 8/9/16 at 6:25 pm
Posted on 8/9/16 at 6:24 pm to theantiquetiger
Tree fiddy
Posted on 8/9/16 at 6:25 pm to theantiquetiger
Tree fiddy
Posted on 8/9/16 at 6:25 pm to theantiquetiger
I would imagine more pennies than have ever existed.
Posted on 8/9/16 at 6:25 pm to theantiquetiger
288
Posted on 8/9/16 at 6:25 pm to theantiquetiger
288
Posted on 8/9/16 at 6:28 pm to theantiquetiger
288
Posted on 8/9/16 at 6:31 pm to Peazey
tree fiddy-treeone-treeone
Posted on 8/9/16 at 6:32 pm to theantiquetiger
$2.55
Posted on 8/9/16 at 6:33 pm to theantiquetiger
It's the sum of two to the first all the way through two to the sixty fourth power.
Fun fact: if you did this starting with a grain of rice on the first square, by the time you got to the last you'd have more rice than would cover the surface of the earth.
Fun fact: if you did this starting with a grain of rice on the first square, by the time you got to the last you'd have more rice than would cover the surface of the earth.
Posted on 8/9/16 at 6:33 pm to G The Tiger Fan
LINK
quote:
On the 64th square of the chessboard alone there would be 2^63 = 9,223,372,036,854,775,808 grains of rice, or more than two billion times as much as on the first half of the chessboard.
This post was edited on 8/9/16 at 6:34 pm
Posted on 8/9/16 at 6:33 pm to theantiquetiger
18,446,744,073,709,551,615
It's an exponent problem
It's an exponent problem
Posted on 8/9/16 at 6:34 pm to AlonsoWDC
Beat you to it fricker!!!
Posted on 8/9/16 at 6:34 pm to LucasP
I will beat your arse, Lucas!
Posted on 8/9/16 at 6:38 pm to zmanthetigerfan
Answer is
$92,233,720,368,547,758.07
That 92 quadrillion
$92,233,720,368,547,758.07
That 92 quadrillion
Posted on 8/9/16 at 6:49 pm to theantiquetiger
$184,467,440,737,096,000.00
Posted on 8/9/16 at 6:50 pm to theantiquetiger
quote:
$92,233,720,368,547,758.07
Actually that's just the number on the last square
I posted the real answer. You have to sum up everything before it.
Posted on 8/9/16 at 6:54 pm to theantiquetiger
quote:
at the end of the board
Where's the end of the board?
Posted on 8/9/16 at 6:55 pm to theantiquetiger
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