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The binary number 10101 is equivalent to decimal number

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Digital Electronics
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The binary number 10101 is equivalent to decimal number ___________.

Answer & Solution
Correct Answer: Option D
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1 Comment
Komal Kolawate
Komal Kolawate 6 years ago
To convert multiply the numbers individually with 2^n where n changes accordingly to place value of the number
(10101) = (2^×1) + (0×2^1) + (1×2^2) + (0×2^3) +
(1×2^4)
= 1 + 0 + 4 + 0 + 16
= 21
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