Permutations And Combinations Question 246

Question: In how many ways can 10 true-false questions be replied

Options:

A) 20

B) 100

C) 512

D) 1024

Show Answer

Answer:

Correct Answer: D

Solution:

  • Required number of ways are $ 2^{10}=1024 $ , because every question may be answered in 2 ways.

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