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There are ______ cells in a 4-variable K-map.

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There are ______ cells in a 4-variable K-map.

(a) 12

(b) 16

(c) 18

(d) 8

This question was posed to me in an online interview.

Asked question is from Karnaugh Map in portion Boolean Algebra and Minimization Techniques and Logic Gates of Digital Circuits

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Best answer
Right answer is (b) 16

The best explanation: There are 16 = (2^4) cells in a 4-variable K-map.

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