CAT Quantitative Ability Questions | CAT Permutation, Combination and Probability questions
CAT/2000
Question . 46
Sameer has to make a telephone call to his friend Harish Unfortunately he does not remember the 7- digit phone number. But he remembers that the first 3 digits are 635 or 674, the number is odd and there is exactly one 9 in the number. The minimum number of trials that Sameer has to make to be successful is
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