If all the digits of the number ‘9723654’ are arranged in ascending order from left to right, the position of how many digits will remain unchanged?
Given Number 9 7 2 3 6 5 4 Ascending order 2 3 4 5 6 7 9 There is ONE such number.
In the word ‘GRAVEYARD’ all consonants are written as their preceding letter and all vowels are written as their following letters. Now all letters are arranged in alphabetical order from left to right and all the repeated letters are eliminated. Then, how many such pairs of letters are there, each of which have as many letters between them in the word (forward direction) as they have between them in the English alphabetical series?