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Quantitative Aptitude

Base Systems

The number of...

Question

The number of 5 digit numbers in binary system is

A

48

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B

16

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C

32

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D

20

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Solution

The correct option is B 16
Required number of numbers = $2^{5} - 2^{4}$ = 32 - 16 = 16
Hence, option (b)

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Similar questions

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in the binary numbering system are called binary digits or ____________.

Q. What digits are representative of all binary numbers?

Q. A number of decimal system when represented in binary system then its first and last digits are same and the rest digits are also of another kind. Further this number appears to be palindrome of numerals. The number is:

Q. The number of digit '1' present in the binary representation of the number

(199)_{16}

Q. (A) Express the number

47

in binary number.
(B) Express the binary number

{110, 111}_{2}

in decimal system.

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