Lila forgot the security code for her apartment building. The code is two different digits followed by a capital letter. How many different possible codes are there? A. 2,106 B.…

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asked Sep 21, 2017 213k views

2 Answers

Eugene Mamin · Answer 1 · 2017-09-25T11:22:23+0000

Answer:B. 2,340

Explanation:

The number of digits = 10 [0,1,2,3,4,5,6,7,8,9]

The number of alphabets = 26

Now we are given that the code is two different digits followed by a capital letter.

Therefore, the number of different possible codes there are :-

$=\ ^(10)P_2*26=10*9*26=2340$

Hence, there are 2340 different possible codes.