Multiple choice Conversion of binary number 1011011 to its decimal number is _____. 81 91 100 200 Reveal answer Fill a bubble to check yourself B Correct answer Explanation Binary to decimal conversion uses powers of 2 from right to left (2^0, 2^1, 2^2, etc.). Starting from the right: 1(1) + 1(2) + 0(4) + 1(8) + 1(16) + 0(32) + 1(64) = 91.