self Maths Puzzle


Three persons Suresh, Devesh and Prashant were born on different days in the same year. If the date and month of birth of Suresh, Devesh and Prashant are numerically equal, then what could be the minimum difference in the ages of youngest and oldest in days?

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self Other Question

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How many subsets of {1, 2, 3, ... , 11} contains at least one even integer?