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Pandigital and divisible (Posted on 2010-12-26) Difficulty: 2 of 5
What percentage of pandigital* numbers is divisible by 990 ?


*A pandigital number consists of 10 distinct digits.

Try to solve analytically.

See The Solution Submitted by Ady TZIDON    
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Hints/Tips re: computer solution ahint for Ch | Comment 2 of 4 |
(In reply to computer solution by Charlie)

All candidate numbers must terminate by zero.

No leading zeros- impossible'

 

Now it is d2

 

Edited on December 27, 2010, 2:30 am
  Posted by Ady TZIDON on 2010-12-26 20:17:29

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