Using Blanks
Examples
1. You are ordering dinner at a restaurant. How many ways can you order a meal
if you have two choices for a drink ( coffee or tea ), three main courses to choose
from ( chicken, beef, or fish ) and two desserts ( pie or cake ) ?
2. Eight sprinters are in the final of a race. How many different ways
there to award the gold, silver and bronze medals ?
3. Television stations in Canada usually have call letters that are 4 letters
long and begin with the letter C. If the CRTC made this a law in
Canada, then how many television stations could the CRTC license ?
4. Repeat the above question using the restriction, repetition of
letters is NOT allowed.
5. Some license plates consist of 3 letters followed by 3 numbers.
How many different license plates are possible if:
(a) if there are NO Restrictions
(b) if the letters must be DIFFERENT
(c) if the letters are different and the first digit can't be 0