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math question

 
 
lovejoy
 
Reply Sun 22 Jan, 2012 12:29 am
a simple one but not for me I was always hopeless at maths.

An ATM card has a 4 digit number, how many combinations are there.

Not in algebra please that was when I gave up on math at school
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contrex
 
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Reply Sun 22 Jan, 2012 02:17 am
@lovejoy,
lovejoy wrote:
An ATM card has a 4 digit number, how many combinations are there.


Pad the numbers out with zeroes so each is 4 digits. From 0000 to 9999 is how many numbers?
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