Here, we have to find the decimal equivalent of the binary number 11001.011 ⇒2−3×1+2−2×1+2−1×0+20×1+21×0+22×0+23×1+24×1 =0.125+0.25+0+1+0+0+8+16=25.375 So, the decimal equivalent of the binary number 11001.011 is (25.375)10 Hence, option A is the correct answer.