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How many binary number are therewith five or fewer digits?

How many binary number are therewith five or fewer digits?
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  • A 10
  • B 31
  • C 100
  • D 32
Correct Answer: Option D
Explanation:
To get the number of binary number in B digit is given by the formula \(N =2^{\text {n }}\)
Where \(N =\) Number of binary numbers \(n =\) Number of digitsor five digits, \(n =5, N =2^5=32\)

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