जॉइन Examsbookउत्तर : 2. "112/495"
A bag contains 8 red and 4 green balls. Find the probability that two balls are red and one ball is green when three balls are drawn at random.5
प्र: A bag contains 8 red and 4 green balls. Find the probability that two balls are red and one ball is green when three balls are drawn at random.
- 156/99false
- 2112/495true
- 378/495false
- 4None of thesefalse
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उत्तर : 2. "112/495"
व्याख्या :
Answer: B) 112/495 Explanation: nS= C4 12=495 nE= C28×C14=112 ∴P(E)=112495
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.