The Math Beast Challenge Problem of the Week – September 30, 2013
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Each week, we post a new GRE 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.
A retailer previously bought an item from a wholesaler for $20 and sold it to consumers for a retail price of $35. After a wholesale cost reduction, the retailer reduces the retail price by 10%, yet the retailer’s profit on the item still increases by 20%. By what percent did the wholesale cost decrease?
See the answer choices and submit your pick over on our Challenge Problem page.
The Math Beast Challenge Problem of the Week – September 23, 2013
Each week, we post a new GRE 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.
See the answer choices and submit your pick over on our Challenge Problem page.
The Math Beast Challenge Problem of the Week – September 16, 2013
Each week, we post a new GRE 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.
See the answer choices and submit your pick over on our Challenge Problem page.
The Math Beast Challenge Problem of the Week – September 2, 2013
Each week, we post a new GRE 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.How many integers between 1 and 300, inclusive, can be expressed as xy, where x and y are integers greater than 1?
See the answer choices and submit your pick over on our Challenge Problem page.
The Math Beast Challenge Problem of the Week – August 26, 2013
Each week, we post a new GRE 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.
See the answer choices and submit your pick over on our Challenge Problem page.
The Math Beast Challenge Problem of the Week – August 19, 2013
Each week, we post a new GRE 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.If
, then what is the value of
?
, then what is the value of 
?See the answer choices and submit your pick over on our Challenge Problem page.
The Math Beast Challenge Problem of the Week – August 12, 2013
Each 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.James is closer in age to Gwen than to Lucille. Gwen is between 30 and 40 years old, inclusive. Lucille is less than 70 years old, and her age in years has exactly three prime factors. Which of the following could be James’ age, in years? Read more
The Math Beast Challenge Problem of the Week – August 5, 2013
Each 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.x – 2 is equal to the reciprocal of the decimal remainder that results when x is divided by 1, and x > 0. Which of the following is a possible value of x?
The Math Beast Challenge Problem of the Week – July 29, 2013
Each 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.If a, b, c, and d are non-negative integers and a(23) + b(22) + c(21) + d(20) = 17, which of the following could be the product abcd?
The Math Beast Challenge Problem of the Week – July 15, 2013
Each 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.If a > b > 0, what is the area of the quadrilateral with vertices at (a, b), (-b,0), (0, -a), and (a, –b) on the coordinate plane?