Boolean Algebra and Logic Simplification - Technical MCQs

Q1:

When four 1s are taken as a group on a Karnaugh map, the number of variables eliminated from the output expression is ________.

A 1

B 2

C 3

D 4

ANS:B - 2

In general,
2 cells are said to be adjacent,if they differ in only one variable&
4 cells are said to be adjacent if they differ by two variables&
8 cells are said to be adjacent if they differ by three variables.