SOLUTION: 4 digit numbers to be formed out of the figures 0,1,2,3,4 (no digit is repeated)then number of such numbers is
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-> SOLUTION: 4 digit numbers to be formed out of the figures 0,1,2,3,4 (no digit is repeated)then number of such numbers is
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There are 4 ways to pick the 1st digit (can't use 0 for the 1st digit).
There are 4 remaining ways to pick the 2nd digit. Can pick 0, but
not the digit picked for the 1st digit.
There are 3 remaining ways to pick the 3rd digit.
There are 2 remaining ways to pick the 4th digit.
Answer: (4)(4)(3)(2) = 96 ways.
Edwin