Permutation 3
Question,
A home security company offers an electronic security system that utilizes the numbers 0 to 9 for a 5-digit security code. How many possible security codes are available if no digits is used more than once and the first digit is not zero?
A home security company offers an electronic security system that utilizes the numbers 0 to 9 for a 5-digit security code. How many possible security codes are available if no digits is used more than once and the first digit is not zero?
If you have other solution kindly comment down. Thank You!
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