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Q.

Convert the following Binary number into a Decimal number.

(010101)2

see full answer

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a

(11)10

b

(21)10

c

(31)10

d

(41)10

answer is B.

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Detailed Solution

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(010101)2 = (0X25 + 1X24 + 0X23 + 1X22 + 0X21 + 1X20 ) 

= (0 + 16 + 0 + 4 + 1)

 =16 + 4 + 1

= (21)10 

∴(010101)2 = (21)10

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