Digital Electronics
A system has following negative numbers stored in binary form as shown. The wrongly stored number is

 -89 as 10100111
 -32 as 11100000
 -37 as 11011011
 -48 as 11101000

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Digital Electronics
In K-map simplification, a group of four adjacent 1s leads to a term with

 three literals less than the total number of variables
 two literals less than the total number of variables
 one literal less than the total number of variables
 four literals less than the total number of variables

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