Q. The binary number 10111 is equivalent to the decimal number
A) 19
B) 31
C) 23
D) 22
Explanation
(c) Hence, (10111)$B = {1 \times 2}^{4} + {0 \times 2}^{3} + {1 \times 2}^{2} + {1 \times 2}^{1} + {1 \times 2}^{0}$
= 16 + 0 + 4 + 2 + 1 = 23
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.