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Books, Books, Books!
George loves reading books. He reads 100 chapters a day. All the chapters are the same length, 40 pages. But the word number on each page changes. If it was the first page of a chapter it would have one word if it were the second it would have three words, the third page would have six and if it were the fourth page it would have 10. The page number and number of words correspond with each other and there is a distinct formula that would get the answer under any circumstances. What is it?
Hint
The tenth page would have 55 words. The page number=n.Answer
where n = page numberwords = (n(n+1))/2
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