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Question 138Asked in BPSC TRE 2.0 (2023) Computer Science Class 11-12

If (11X1Y)₈ = (12C9)₁₆, then the values of X and Y are

  1. A5, 1
  2. B5, 7
  3. C3, 1
  4. DMore than one of the above
  5. ENone of the above
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Correct answer: (C) 3, 1

Explanation

(12C9)₁₆ = 1 0010 1100 1001₂. Regrouped in threes from the right this is 1 001 011 001 001 = (11311)₈, so X = 3 and Y = 1.

From BPSC TRE 2.0 (2023) Computer Science Class 11-12 — Previous Year Paper

This is question 138 of BPSC TRE 2.0 (2023) Computer Science Class 11-12 — Previous Year Paper. See all questions of this paper with answers, or attempt the paper as a timed online test to get your score and all-India rank.