Easy Permutation-Combination Solved QuestionAptitude Discussion

 Q. There are $12$ yes or no questions. How many ways can these be answered?
 ✔ A. $4096$ ✖ B. $2048$ ✖ C. $1024$ ✖ D. $144$

Solution:
Option(A) is correct

Each of the questions can be answered in $2$ ways (yes or no).

Therefore, no. of ways of answering $12$ questions,

$= 2^{12}$

$= \textbf{4096 ways.}$

Shaswat Khamari
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I agree.