AP EAMCET · Maths · Probability
If on an average mountain climbers out of return safely, what is the probability that with climbers out, at least will return safely?
- A
- B
- C
- D
Answer & Solution
Correct Answer
(B)
Step-by-step Solution
Detailed explanation
P(returning safely)=910 P(at least 4 returning safely)+P(5 returning safely) =C45·9104·1101+C55·9105 =5·94105+95105 =94(14)105 =94·750000
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