Explanation:

Correct option 4 0.8125

To convert the binary number (0.1101), to its decimal equivalent, we evaluate each binary digit after the decimal point as a negative power of 2:
Binary:
(0.1101) ₂ =
= 1x(2^-1) + 1x(2^-2)+0x(2^-3) + 1x(2^-4)
= 0.5 +0.25 + 0 + 0.0625
= 0.8125
Ans (0.1101) = 0.812510