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Pathshala Nepal
2 years ago Grade -12 (NEB) > Science Computer, Engineering Aptitude, Math Number System

Binary number 1111 1111 is equivalent which decimal number

(1111 1111)2 is equivalent to (?)2

A
256
B
255
C
252
D
200
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  • convert binary to decimal
1

1 Answer

Pathshala Nepal
2 years ago Answer Link Tribhuvan University > Institute of Science and Technology > B.Sc. (CSIT)

Correct option is B. 

The decimal number is equal to the sum of binary digits (dn) times their power of 2 (2n): decimal = d0×20 + d1×21 + d2×22 + ... 
So, (11111111)2 will be (255)10.
 
2

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