Convert the binary number 11011_two to a base ten (denary) number.
Answer and explanation
Correct answer: D. 27
- Step 1: Expand in powers of 2: 1(2^4) + 1(2^3) + 0(2^2) + 1(2^1) + 1(2^0). Step 2. Evaluating each term gives 16 + 8 + 0 + 2 + 1 = 27. Answer: 27. Why not the others:* 25 misses the 2^1 term; 29 adds an extra 2; 31 is 11111_two.
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