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$99

Math brain teasers require computations to solve.

 

Puzzle ID:#2102
Fun:*** (2.34)
Difficulty:** (1.67)
Category:Math
Submitted By:ChemicalBoy08*****
Corrected By:rose_rox

 

 

 



A bank customer had $100 in his account. He then made 6 withdrawals, totaling $100. He kept a record of these withdrawals, and the balance remaining in the account, as follows:


Withdrawals........Balance Left
$50...................$50
$25...................$25
$10...................$15
$8.....................$7
$5.....................$2
$2.....................$0
___________________
$100..................$99

When he added up the columns as above, he assumed that he must owe $1 to the bank. Was he right?

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Answer

There is no reason whatever why the customer's original deposit of $100 should equal the total of the balances left after each withdrawal. The total of withdrawals in the left-hand column must always equal $100, but is purely coincidence that the total of the right-hand column is close to $100.
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