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Question: Answered & Verified by Expert
What is the binary equivalent of decimal number $(0.8125)_{10}$ ?
MathematicsSets and RelationsNDANDA 2009 (Phase 1)
Options:
  • A $(0.1101)_{2}$
  • B $(0.1001)_{2}$
  • C $(0.1111)_{2}$
  • D $(0.1011)_{2}$
Solution:
2397 Upvotes Verified Answer
The correct answer is: $(0.1101)_{2}$
Work with option $(0.1101)_{2}=1 \times 2^{-1}+1 \times 2^{-2}+1 \times 2^{-4}$
$=\frac{1}{2}+\frac{1}{4}+\frac{1}{16}=\frac{13}{16}=(0.8125)_{10}$
Hence option (a) gives the binary equivalent of given decimal number.

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