- #1
I_am_learning
- 682
- 16
How many five digit numbers are there which have first three digits in ascending order and last three digits in descending order?
I thought people from all faculty can ponder on this, that is why I placed it in GD rather than Maths forum.
Clarifications (Added after 6 replys had been made):
1. Base 10. (Never thought I would have to answer this too!)
2. strictly ascending and strictly descending.
3. No leading 0s allowed.
But since this isn't a home-work question It doesn't really much matter what assumptions you take. I just wanted to see how you would approach it. But the assumptions shouldn't make it too easy, like assuming, Base 2, not-strictly ascending, and No leading 0s.
I thought people from all faculty can ponder on this, that is why I placed it in GD rather than Maths forum.
Clarifications (Added after 6 replys had been made):
1. Base 10. (Never thought I would have to answer this too!)
2. strictly ascending and strictly descending.
3. No leading 0s allowed.
But since this isn't a home-work question It doesn't really much matter what assumptions you take. I just wanted to see how you would approach it. But the assumptions shouldn't make it too easy, like assuming, Base 2, not-strictly ascending, and No leading 0s.
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