mathematics help: Which of the following binary numbers could be a binary coded decimal? - Help.com



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Which of the following binary numbers could be a binary coded decimal?

a) 1000
b) 1011
c) 11011011
d) 11001110

This open post was written 2 months ago | V/U/S: 118, 16, 5 | Edit Post | Leave a reply | Report Post


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Da-1 offline Unverified User #
An Unknown Location | 2 months ago (2 minutes after post)

A

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spiratec9 offline Verified User (1 year, 9 months) Long Term User Shouts: 7 #
Burnaby, BC, CA | 2 months ago (3 minutes after post)

a and b
because you need 4 bits to represent BCD.

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spiratec9 offline Verified User (1 year, 9 months) Long Term User Shouts: 7 #
Burnaby, BC, CA | 2 months ago (4 minutes after post)

da-1 is right because B is larger than 9

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spiratec9 offline Verified User (1 year, 9 months) Long Term User Shouts: 7 #
Burnaby, BC, CA | 2 months ago (7 minutes after post)

B=1000=8
plus 0010=2
plus 0001=1
total is 11 its not allowed as a BCD

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Da-1 offline Unverified User #
An Unknown Location | 2 months ago (7 minutes after post)

A is the only correct one; it is 8 in BCD

the other ones equal numbers that can not be reresent decimals they are binery coded hexidecimal

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spiratec9 offline Verified User (1 year, 9 months) Long Term User Shouts: 7 #
Burnaby, BC, CA | 2 months ago (10 minutes after post)

B,C,D are just plain binary.Or Hex.
B=1011 in Hex is just B
1,2,3,4,5,6,7,8,9,A,B,C,D,E,F

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Da-1 offline Unverified User #
An Unknown Location | 2 months ago (11 minutes after post)

Nope it’s only a

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spiratec9 offline Verified User (1 year, 9 months) Long Term User Shouts: 7 #
Burnaby, BC, CA | 2 months ago (12 minutes after post)

spiratec9 wrote:
B,C,D are just plain binary.Or Hex.
B=1011 in Hex is just B
1,2,3,4,5,6,7,8,9,A,B,C,D,E,F

Mistake add Or decimal

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spiratec9 offline Verified User (1 year, 9 months) Long Term User Shouts: 7 #
Burnaby, BC, CA | 2 months ago (13 minutes after post)

A,B,C,D all could be decimal of coarse

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yannu offline Verified User (2 months) Shouts: 0 #
An Unknown Location | 2 months ago (21 minutes after post)

look at wikipedia - (a) is the only one that works

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