We have 4 pairs here.
(0,0,0) and (1,0,1)
(0,0,1) and (1,0,0)
(0,1,0) and (1,1,1)
(0,1,1) and (1,1,0)
Here all pairs have 2 choices (mapped to either 0 or 1 ).
4 pairs having 2 choices
So 24=16
Hence 16 is the Answer.
plz elaborate
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