MBA Exam Numerical Ability

123456123456....600 digits mod 37

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MBA Other Question

A bag has 6 blue balls, 8 red balls, 5 black balls and 9 white balls. You are asked to pick some balls from the bag, without looking into the bag. What is the minimum number of balls you must pick so as to be sure that at least 3 of them are of the same color? The average number of vehicles serviced by two service stations per day 200 and 250 with standard deviation 20 and 25 respectively on the basis of records of 25 days of servicing. can you regard both the service stations equally efficient at 0.01 level of significance