जॉइन Examsbookउत्तर : 2. "5/18"
In a single throw of two dice , find the probability that neither a doublet nor a total of 8 will appear.5
प्र: In a single throw of two dice , find the probability that neither a doublet nor a total of 8 will appear.
- 17/15false
- 25/18true
- 313/18false
- 43/16false
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उत्तर : 2. "5/18"
व्याख्या :
Answer: B) 5/18 Explanation: n(S) = 36 A = {(1, 1), (2, 2), (3, 3), (4, 4), (5, 5), (6, 6)} B = { (2, 6), (3, 5), (4, 4), (5, 3), (6, 2) } nA=6, nB=5, nA∩B=1 ∴Required probability = PA∪B = PA+PB-PA∩B = 636+536-136 = 518
समान प्रश्न
Since Nithya and Suganya exchange places, so Rita’s new position is the same as Monika’s earlier position. This position is 17th from the right and 10th from the left. Therefore Number of girls in the row = (16 + 1 + 9) = 26.