Question

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. 2,340
C. 2,600

Answer 1

Answer:B. 2,340

Step-by-step 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  :-

$=\ ^{10}P_2\times26=10\times9\times26=2340$

Hence, there are 2340 different possible codes.

Answer 2

10*9*26=2,340
B.2,340