Multiple choice

Which of the following decimal numbers is equivalent to the binary number 101.101?

  1. 5.6249

  2. 5.625

  3. 5.5

  4. 5.25
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Binary 101.101 = 5.625. The integer part 101 = 1×4 + 0×2 + 1×1 = 5. The fractional part .101 = 1×(1/2) + 0×(1/4) + 1×(1/8) = 0.5 + 0.125 = 0.625. Sum = 5.625.

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