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  QUESTION OF THE DAY  
Question of the day
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Question of the Day (12-Jan-19)

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Set A consists of natural numbers less than 100 such that any two elements of the set have the same greatest common divisor (or gcd). It is further known that any two elements of the set A are relatively prime and the set A contains the maximum possible number of  elements. What is the maximum number of ways in which the set A can be formed?
OPTIONS
 
 1)96
 2)120
 3)26
 4)1
 5)None of these

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