MHT CET 2022 Mathematics question
One ticket is selected at random from 50 tickets numbered . Then the probability that the sum of the digits on the selected ticket is 8, given that the product of these digits is zero, is
Answer: (B)
Solution
Let : sum of digits is and : product of digits is zero. occurs when a digit is : tickets (tens digit , tickets) and (units digit , tickets other than ): . : sum and a zero digit means
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