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Question 50

The Boolean expression X + X'Y equals

  1. AX + Y
  2. BX + XY
  3. CX + YX
  4. DX' Y + Y' X
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Correct answer: (A) X + Y

Explanation

X + X'Y = (X + X')(X + Y) = 1·(X + Y) = X + Y, by the distributive law.

From DSSSB TGT Computer Science Practice Set 5

This is question 50 of DSSSB TGT Computer Science Practice Set 5. 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.