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If two dice are simultaneously rolled then what is probability of getting sum 4?(a) 1/6(b) 1/4(c) 1/12(d) 1/9I had been asked this question in an interview for job.I want to ask this question from Probability topic in section Probability of Mathematics – Class 11

Answer»

The correct CHOICE is (c) 1/12

For explanation I would SAY: If two dice are simultaneously rolled then total NUMBER of POSSIBLE outcomes is 6*6 =36.

We can GET 4 as sum in these cases {(1,3), (2,2), (3,1)}. So, probability of getting sum 4 is 3/36 = 1/12.



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