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Two Dice Are Rolled Once. Find the Probability of Getting Such Numbers on the Two Dice, Whose Product is 12. - CBSE Class 10 - Mathematics

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Question

Two dice are rolled once. Find the probability of getting such numbers on the two dice, whose product is 12. 

Solution

The sample space of the given experiment is as follows: 

`s={[(1,1) (1,2)(1,3)(1,4)(1,5)(1,6)],[(2,1) (2,2)(2,3)(2,4)(2,5)(2,6)],[(3,1) (2,2)(3,3)(3,4)(3,5)(3,6)],[(4,1) (4,2)(4,3)(4,4)(4,5)(14,6)],[(5,1)(5,2)(5,3)(5,4)(5,5)(5,6)],[(6,1) (6,2)(6,3)(6,4)(6,5)(6,6)]}`

∴ n (S) = 36 

Let E be the event of getting such numbers whose product is 12. 

Then, E = {(2, 6), (3, 4), (4, 3), (6, 2)} 

∴ n (E) = 4 

Thus, required probability `(n(E))/(n(S))=4/36=1/9`

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Solution Two Dice Are Rolled Once. Find the Probability of Getting Such Numbers on the Two Dice, Whose Product is 12. Concept: Probability Examples and Solutions.
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