Question
A zip code in Canada consists of three letters and three digits. Each zip code begins with a letter. The letters and digits alternate; for instance, A1 B2 C3. Find the number of zip codes that:End in 6
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Since each zip code begins with a letter, there are 26 possibilities for the first letter (A-Z). Show more…
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A Canadian postal code consists of a series of six characters, of which three are letters and three are digits. It begins with a letter, and each letter is followed by a single digit. (To make it easier to read, the series is broken into sequences of three. For example, B3H 3J5 is a valid postal code). How many Canadian postal codes are possible?
A Canadian postal code uses 6 characters. The first, third and fifth are letter, while the second, fourth and sixth are digits. A USA zip code contains five characters, all digits. a.) how many codes are possible for each? b.) how many more possible codes does the one country have more than the other?
Postal codes in Canada consist of three letters and three digits. Letters and digits alternate, as in the code R7B 5K1. a) How many different postal codes are possible with this format? b) Do you think Canada will run out of postal codes? Why or why not?
Permutations, Combinations, and the Binomial Theorem
Combinations
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