0 votes 0 votes 2’s complement representation of the number $(-89)_{10}$ is 7 5 4 3 I don’t understand their solution. Please help. Digital Logic digital-logic number-representation made-easy-test-series + – MiNiPanda asked Jan 15, 2019 edited Mar 4, 2019 by ajaysoni1924 MiNiPanda 555 views answer comment Share Follow See all 4 Comments See all 4 4 Comments reply arvin commented Jan 15, 2019 reply Follow Share in question they have asked for 2's complement in solution they have solved for sum of bits..? ambiguity? 0 votes 0 votes kumar.dilip commented Jan 15, 2019 reply Follow Share I'm not getting the question correctly.But some of the case i can give. 1.Number of bits to represent. $-2^{n-1} \geq -89 $ $2^{n-1} \geq 2^{7} $ n = 8 bits. 2.2's complement of the -89. 10100111 . Sum of bits = 1 + 0 + 1 + 0 +0+ 1+1+1 => 5. Number of bits = 8. 0 votes 0 votes MiNiPanda commented Jan 15, 2019 i edited by MiNiPanda Jan 15, 2019 reply Follow Share @arvin,@kumar.dilip Exactly. I am also not getting it. And it said 2's complement representation of -89 and not 2's complement of -89. 0 votes 0 votes arvin commented Jan 15, 2019 reply Follow Share @MiNiPanda i think there is some fault in the question! 0 votes 0 votes Please log in or register to add a comment.