SOLUTION: Consider all positive integers with three different digits. (Note that zero cannot be the first digit.) Find the number of them which are: (a) greater than 700; (b) odd; (c) divi

Algebra ->  Permutations -> SOLUTION: Consider all positive integers with three different digits. (Note that zero cannot be the first digit.) Find the number of them which are: (a) greater than 700; (b) odd; (c) divi      Log On


   

Question 1150507: Consider all positive integers with three different digits. (Note that zero cannot be the first digit.) Find the number of
them which are: (a) greater than 700; (b) odd; (c) divisible by 5.
Answer by ikleyn(52781) About Me  (Show Source):
You can put this solution on YOUR website!
.

After reading your post, it is UNCLEAR to me: 

    should I consider 3 different/separate cases for each condition

or

    all the three conditions must be satisfied simultaneously ?

Please clarify.