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In How Many Ways Can an Examinee Answer a Set of Ten True/False Type Questions? - Mathematics

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In how many ways can an examinee answer a set of ten true/false type questions?

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Solution

Number of ways of answering the first question = 2 (either true or false)
Similarly, each question can be answered in 2 ways.
∴ Total number of ways of answering all the 10 questions = 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 210 = 1024

Concept: Combination
  Is there an error in this question or solution?

APPEARS IN

RD Sharma Class 11 Mathematics Textbook
Chapter 16 Permutations
Exercise 16.2 | Q 7 | Page 15

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