MHT CET 2025 Mathematics question
A box contains 9 tickets numbered 1 to 9 both inclusive. If 3 tickets are drawn from the box one at a time, then the probability that they are alternatively either {odd, even, odd} or {even, odd, even} is
Answer: (D)
Solution
Tickets 1 to 9 contain 5 odd (1,3,5,7,9) and 4 even (2,4,6,8) numbers; tickets are drawn one at a time without replacement. . . The two patterns are mutually
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