I'm posting one puzzle, riddle, math, or statistical problem a day. Try to answer each one and post your answers in the comments section. I'll post the answer the next day. Even if you have the same answer as someone else, feel free to put up your answer, too!
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A checkbook?
ReplyDeleteA passbook.
ReplyDeleteA phonebook! Hard to believe, but phones were once just for the rich.
ReplyDeleteA notebook - computers were insanely expensive in the 80's to 90's, but now you can get them brand new for under $400!
ReplyDelete