Sagot :
Answer:
first digit: 4 choices from 5,6,7 or 8
second digit: 3 choices remain because of non-repetition stricture
third digit: 2 choices remain
Product of the above is 4! = 24
Answer:
first digit: 4 choices from 5,6,7 or 8
second digit: 3 choices remain because of non-repetition stricture
third digit: 2 choices remain
Product of the above is 4! = 24