Question ID 539131

Created April 29, 2011 4:11pm UTC

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URL https://questions.llc/questions/539131

Answers 3

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There are 5 choices for the first digit, 4 choices for the second, 3 choices for the third, ... The choices are independent of each other, so we multiply the number of choices to get the count of different numbers: 5*4*3*2*1 = ?

Answer ID 539154

Created April 29, 2011 5:22pm UTC

URL https://questions.llc/answers/539154

The above answer assumes all 5 digits are used, and without repetition.

Answer ID 539156

Created April 29, 2011 5:23pm UTC

URL https://questions.llc/answers/539156

another interpretation. single digit number = 5 double digit number = 5x4 = 20 triple ditit number = 5x4x3 = 60 four digit numbers = 5x4x3x2 = 120 five digit numbers = 5x4x3x2x1 = 120 add them up

Answer ID 539172

Created April 29, 2011 6:10pm UTC

URL https://questions.llc/answers/539172

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