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The decimal number 3 is ___ in binary the 2s column plus the 1s column.

a. 11

b. 12

c. 20

d. 21

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Answers (1)
  1. 2 November, 18:56
    0
    The answer is "Option a"

    Explanation:

    In the given question the correct answer is the option a because when we change decimal number 3 into a binary number, It will give "11". To know its decimal number we add both numbers.

    for example:

    binary to decimal (11) ₂=?

    ∴ 2¹=2 and 2⁰=1

    = 1*2¹+1*2⁰

    ∵ 1*2+1*1

    =2+1

    =3

    and other options are not correct, that can be described as follows:

    In option b, option c, and option d, The computer understands the only binary language, that contains only 0 and 1, and in these options, It contains other value, that's why it is not correct.
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