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Question 156Asked in DSSSB TGT Computer Science, 24 Jun 2023, Shift 3 (4:30 PM)

If two dice are thrown, find the probability that the sum is neither 5 nor 9?

  1. A3/9
  2. B5/9
  3. C1/9
  4. D7/9
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Correct answer: (D) 7/9

Explanation

A sum of 5 occurs 4 ways and a sum of 9 occurs 4 ways out of 36, so P(5 or 9) = 8/36 = 2/9. The required probability is 1 − 2/9 = 7/9.

From DSSSB TGT Computer Science PYQ, 24 Jun 2023, Shift 3 (4:30 PM)

This is question 156 of DSSSB TGT Computer Science PYQ, 24 Jun 2023, Shift 3 (4:30 PM). 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.