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How many possible combinations are in four digit bike lock? |
I just bought a combination bike lock today and it has four spots numbering from zero to nine. How many possible combinations can I make? 10 to the 4th power = 10000 This is from 0000 to 9999 10 to the 4th 10,000 4 digits, biggest number you can make is 9999, add 1 more because you can do "0000" so you get 10,000 combinations 10 9 8 7 = 5040 possible four digit arrangement if order is important http://mathcentral.uregina.ca/qq/databas... a lot, too many well from 0 to 9 is 9 add 3 more 9's and 9999 What's the highest number you can make on the discs? Guessing it's 9999 unless you've got the only hexadecimal lock in the world. Add 1 for 0000 gives you 10000. No math required ;-) |
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