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Probing the prob. (Posted on 2014-01-21) Difficulty: 2 of 5
Chose at random two distinct decimal digits.
Denote them as A & B.

1. What is the probability that:AB is less than A+B?
2. Same question, but with the word "distinct" erased.

See The Solution Submitted by Ady TZIDON    
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Solution 2nd question first (spoiler) | Comment 1 of 5
AB < (A + B) if A or B is 0 or 1, unless they are both 0.

Part 2) 
Probability, if A and B can be the same = 
  This is 35 ways out of 100 = .35

Part 1)
Probability, if A and B are distinct = 
  34 ways out of 90 = .377..

I haven't checked this result, so I might need to be corrected



  Posted by Steve Herman on 2014-01-21 10:25:18
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