Question

9. Consider a combination lock consisting of 3 buttons that can be
pressed in any combination (including multiple buttons at a time), but in
such a way that each number is pressed exactly once. Then the total
number of possible combination locks with 3 buttons is
(A) 6; (B) 9;
(C) 10;
(D) 13.​

Answer 1

Answer:

Option B is the correct answer Mark me as brainliest and please follow me and thank me for a while

Answer 2

Answer:

option c 10 is the answer

Step-by-step explanation:

there are 3buttons we can type in 3 different types and at a time once so 10