Posted by jona on Friday, May 10, 2013 at 7:33pm.
security codes in fiji are made up of 4 digits. how many different 4 digit codes are possible . if the first digit should be one?

st130  PsyDAG, Saturday, May 11, 2013 at 1:19pm
1 * 10 * 10 * 10 = ?
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