Random Riddle: 5-23-2013

 Riddles  Comments Off on Random Riddle: 5-23-2013
May 232013
 

None. If their names are in the phone directory, they do not have unlisted phone numbers!

Hold your mouse over for the answer.

In a certain city, 5% of all the persons in town have unlisted phone numbers. If you select 100 names at random from that city’s phone directory, how many people selected will have unlisted phone numbers?