The Math Beast Challenge Problem of the Week – March 19th, 2012

Tom Williams —  March 19, 2012 — Leave a comment

Math BeastEach week, we post a new Challenge Problem for you to attempt. If you submit the correct answer, you will be entered into that week’s drawing for two free Manhattan Prep GRE Strategy Guides.

The sequence of numbers a1a2a3, …, an, … is defined by  for each integer n â‰¥ 1.

Quantity A
The sum of the first 20 terms of this sequence

Quantity B
The sum of the first 19 terms of this sequence

See the answer choices and submit your pick over on our Challenge Problem page.

Tom Williams

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Tom Williams is a Marketing Associate at Manhattan Prep. His background and interests are primarily within New Media and Online Marketing. As such, he spends approximately 18 hours a day in front of a computer. When he’s not interacting with Manhattan Prep students on Facebook and Twitter, Tom can be found listening to records, rooting for the Mets and Jets, and reading history books.

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