GMAT Problem Solving (PS) | Re: Remainder Problem
jade3 wrote:The remainder when 1+3+3^2+3^3+..........+3^200 is divided 13.A.12B.7C.0D.5E.31+3+3^2+3^3+..........+3^(201-1) = (3^201 - 1)/(3-1) = (3^201 - 1) / 2 Now by 13 = (3^201 - 1) / 26 = (3^3)^67...
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GMAT Problem Solving (PS) | Re: If there is exactly one root of the equation...
carcass wrote:If there is exactly one root of the equation x^2 + ax + b, where a and b are positive constants, what is b in terms of a? A. a/2 B. a C. 3a/2 D. a^2/2 E. a^2/4I'm not sure how to solve...
View ArticleGMAT Problem Solving (PS) | Re: A's speed is 20/13 times that of B. If A and...
mahendru1992 wrote:Let A's speed be 20 and B's speed be 13 and let the total distance be100=> Since B beats A by 20% of the length of the track, A only ran80m.=> So using the...
View ArticleGMAT Problem Solving (PS) | Re: A man chooses an outfit from 3 different...
tarek99 wrote:A man chooses an outfit from 3 different shirts, 2 different pairs of shoes, and 3 different pants. If he randomly selects 1 shirt, 1 pair of shoes, and 1 pair of pants each morning for...
View ArticleGMAT Problem Solving (PS) | Re: Digits Problem Difficulty in GMAT Club test 1
Bunuel wrote:TallJTinChina wrote: When we write the numbers 1 to 1000 do we use 3 digits for each number?What about:0123456789and10...99The reason it works out is because we don't use zero laterso you...
View ArticleGMAT Quantitative Section | Re: My comprehensive Quant Flashcards!
thnks again..._________________________________Rough Seas never make skillful sailors.
View ArticleGMAT Problem Solving (PS) | Re: Sequence S consists of 16 consecutive...
Many thanks. While i am aware of the properties of 'zero' but could not understand why did we not consider zero as an integer here as per the question stem.
View ArticleGMAT Quantitative Section | Re: n is integer from 1-99
bsahil wrote:n is integer from 1-99:1. Probabilty that n(n+1) is divisible by 32. Probabilty that n(n+1)(n+2) is divisible by 63. Probabilty that n(n+1)(n+2) is divisible by 8Please help me... I am...
View ArticleGMAT Data Sufficiency (DS) | Re: Is Z > 10 - Z ?
blueseas wrote:INEQUALITY SIGN DOESNT CHANGE WHEN WE ADD OR SUBTRACT SAME THING FROM BOTH SIDE, check this out:help-me-understand-the-flipping-of-the-inequality-sign-94994.html#p735418so in ourcase:Z...
View ArticleGMAT Data Sufficiency (DS) | Re: The Discreet Charm of the DS
pjagadish27 wrote:Bunuel wrote:12. If 6a=3b=7c, what is the value of a+b+c? Given:6a=3b=7c --> least common multiple of 6, 3, and 7 is 42 hence we ca write:6a=3b=7c=42x , for some numberx...
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GMAT Data Sufficiency (DS) | Re: What does q equal in the figure shown above...
blueseas wrote:it is because X=W and Y=Z ...see my diagram (this information we got from statement 1 and 2)therefore x+y = w+z clear?? Yes, it is clear now. I don't know why I missed it earlier But...
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GMAT Data Sufficiency (DS) | Re: if each student gets at least one pencil in...
Asifpirlo wrote:if each student gets at least one pencil in the exam hall, what is the probability that a student gets exactly one pencil in the exam hall?(1) 110 students are expected to get at least...
View ArticleGMAT Problem Solving (PS) | Re: If n is an integer greater than 6, which of...
Stiv wrote:If n is an integer greater than 6, which of the folowing must be divisible by 3?A n(n+1)(n-4)B n(n+2)(n-1)C n(n+3)(n-5)D n(n+4)(n-2)E n(n+5)(n-6)Is there a quicker way to solve this...
View ArticleGMAT Quantitative Section | Re: 'Work' Word Problems Made Easy
rrsnathan wrote:Hi,Can sombody please solve this wit solution for this question.It takes Printer A 4 more minutes than printer B to print 40 pages. Working together, the two printers can print 50...
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GMAT Problem Solving (PS) | Re: The "prime sum" of an integer n greater than...
Great explanations, thank you guys!
View ArticleGMAT Problem Solving (PS) | Re: Re:
rrsnathan wrote:cool_jonny009 wrote: ok guys !!! I am totally confused here about.With Replacement and Without Replacemetn Funda ..I thought With out replacement means we are taking out the balls and...
View ArticleGMAT Problem Solving (PS) | (1/5)^m * (1/4)^18 = 1/2(10)^35 What is the value...
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GMAT Problem Solving (PS) | Re: (1/5)^m * (1/4)^18 = 1/2(10)^35 What is the...
sokenyou wrote:(1/5)^m * (1/4)^18 = 1/2(10)^35What is the value of m?1. 172. 183. 344. 355. 36I just don't get how to solve it using backsolving or picking numbers or something that is quick....I just...
View ArticleGMAT Quantitative Section | Re: Number Theory questions
rashee65 wrote:Dear all,Where can I find number theory practice questions? Theory on Number Properties: math-number-theory-88376.htmlAll DS Number Properties Problems to practice:...
View ArticleGMAT Problem Solving (PS) | If x is the product of the positive integers from...
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