PLEASE HELP MEEE
How many numbers are there between 4,000
and 10, 000 such that each digit in the number
is larger than the digit on its left, but smaller
than the digit on its right?
Example: 4569
How many numbers?
Answers
Answered by
2
4567
4568
4569
4678
4679
4789
5678
5679
5789
6789
4568
4569
4678
4679
4789
5678
5679
5789
6789
Answered by
1
there is 4567
4568
4569
4678
4679
4789
5678
5679
5789
6789
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