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Cheaper Movie Ticket-Math riddle

30.Math Riddles
If you go to the movies and you are paying, is it cheaper to take one friend to the movies twice or two friends to the movies at the same time? 
    • Once
      Explanation :  
      
      It's cheaper to take two friends at the same time. In this case, you would only be buying three tickets, whereas if you take the same friend twice, you are purchasing four tickets.