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800Score Quant

Anybody have any thoughts on the 800Score CATs? The most recent posts I find on this topic is from 2010.I recently purchased the 5 extra tests from 800Score and I took just the Quant section to...

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If h and k are both positive integers, are both roots of the

If h and k are both positive integers, are both roots of the equation 2 (x^2) + hx + k = 0 integers?1. The product of the roots is 62. kh = 132Source: KnewtonCan anyone help provide a simpler solution...

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The bear alarm at Grizzly’s Peak ski resort sounds an averag

The bear alarm at Grizzlys Peak ski resort sounds an average of once every thirtydays, but the alarm is so sensitively calibrated that it sounds an average of ten falsealarms for every undetected bear....

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percentage

A grocer has 400 pounds of coffee in stock, 20 percent of which is decaffeinated. If the grocer buys another 100 pounds of coffee of which 60 percent is decaffeinated, what percent, by weight, of the...

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The concept of "n" within a SEQUENCE - don't get it?

This topic here: in-the-sequence-x0-x1-x2-xn-each-term-from-x1-to-xk-126564.htmlgot me thinking about what does "n" actually mean? Before I was 100% sure that "n" denotes the rank that the element...

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If x^2 + 1/x^2 = 4, what is the value of x^4 + 1/x^4 ?

If x^2 + 1/x^2 = 4, what is the value of x^4 + 1/x^4 ?A. 10B. 12C. 14D. 16E. 18

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What is the value of x?

What is the value of x?(1) 4^x * 2^y = 8(2) 81^x * 9^y = 3^6

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Machine M and Machine N working alone at their constant rate

Machine M and Machine N working alone at their constant rates, non stop, produced 6000 and 8000 nails respectively. Did machine M work longer than machine N?(1) Machine N produces 2000 more nails than...

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A store sells erasers for 0.23$ per piece and pencil for 0.1

A store sells erasers for 0.23$ per piece and pencil for 0.11$ per piece. How many eraser and pencils did Jessica buy?(1) She bough 5 erasers (2) She spent total of 1.70$

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If r and s are positive integers, is r/s an integer?

This topic have been merged with: http://gmatclub.com/forum/topic-128005.html

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Two points are on the opposite sides of a square who sides

Two points are on the opposite sides of a square who side measures 4. Which of the following could be the distance between these two points?(A) 3.8(B) 5(C) 6(D) 7(E) 9

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John and Jane went out for a dinner and they ordered the

John and Jane went out for a dinner and they ordered the same dish. Both used a 10% discount coupon. John paid a 15% tip over the original price of the dish, while Jane paid the tip over the discounted...

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There are 84 supermarkets in the FGH chain. All of them

There are 84 supermarkets in the FGH chain. All of them are either in the US or Canada. If there are 22 more FGH supermarkets in the US than in Canada, how many FGH supermarkets are there in the US?A....

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If, x = 300^(1/4) then which of the following is true?

If x = \sqrt[4]{300} then which of the following is true?A. 3 < x < 3.5B. 3.5 < x < 4C. 4 < x < 4.5D. 4.5 < x < 5E. 5 < x < 5.5

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Certain word is written on a paper. What is the number of ar

New project from GMAT Club: Topic-wise questions with tips and hints!Certain word is written on a paper. What is the number of arrangements of letters of that word ?(1) If the first two letters were...

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how many minimum number of terms should be considered for

how many minimum number of terms should be considered for below AP such that sum of the terms becomes less than zero40,37,34,31,.......a>26b> 27c>28d>29e>30

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Even\odd simplifications

I would like to share with you some simplifications about even and odd number, that you can use in solving GMAT problems.1. Don't care about positive integral powers.Obviously, if you take an even...

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Guidance needed for Permutation/Combination and Probability

Greetings my fellow earthlings I started prepping for GMAT last week. I gave my first Pearson Practice test yesterday, and barely managed a 600 . I am quiet disappointed in my performance. I was always...

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On Monday, Nicole spent $780 on fifty-two collector’s comic

On Monday, Nicole spent $780 on fifty-two collectors comic books. She then returned to the comic book store on Tuesday and purchased eight more comics. Was the mean price she paid per book more than...

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In the former Soviet Union, rubles came in denominations of

In the former Soviet Union, rubles came in denominations of 1, 3, 5, 10, 25, 50, and 100. Boris and Natasha are at the bank to change an enormous pile of 50 and 100 ruble notes, but the teller is out...

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