SOLUTION: Canadian postal codes consist of three letter (A-Z) and three digits (0-9), which alternate and start with a letter. For example, L2P 3T3 is a postal code from St Catharines, Ont

Algebra ->  Permutations -> SOLUTION: Canadian postal codes consist of three letter (A-Z) and three digits (0-9), which alternate and start with a letter. For example, L2P 3T3 is a postal code from St Catharines, Ont      Log On


   

Question 923419: Canadian postal codes consist of three letter (A-Z) and three digits (0-9), which alternate and start with a
letter. For example, L2P 3T3 is a postal code from St Catharines, Ontario.
a) How many postal codes can be created using this system?
b) How many postal codes could be created if no digit or letter can be repeated?
Answer by TimothyLamb(4379) About Me  (Show Source):
You can put this solution on YOUR website!
LDL DLD
---
answer a:
26*10*26*10*26*10
17576000
---
answer b:
26*10*25*9*24*8
11232000
---
Solve and graph linear equations:
https://sooeet.com/math/linear-equation-solver.php
---
Solve quadratic equations, quadratic formula:
https://sooeet.com/math/quadratic-formula-solver.php
---
Convert fractions, decimals, and percents:
https://sooeet.com/math/fraction-decimal-percent.php
---
Calculate and graph the linear regression of any data set:
https://sooeet.com/math/linear-regression.php