There are 10 true-false questions in an examination. these questions can be answered in -
A
20 ways
B
100 ways
C
210 ways
D
1024 ways
Correct Answer: 1024 ways
Number of ways the questions can be answered = 2∧10 = 1024 2∧10 ways, 1024 ways So, the number of different ways that 10 questions can be answered is 210 = 1024