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GMAT Problem Solving (PS) | Re: Marco and Maria toss a coin three times. Each...

Its 3/8Probability of individual event : 1/2 No. of individual events : 3 therefore 1/2 X 1/2 X 1/2 = 1/8No. of ways in which we can contain favorable result : 3 they are HTT, THT, TTHthus 3X1/8 = 3/8

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GMAT Data Sufficiency (DS) | John is trying to get from point A to point C,...

John is trying to get from point A to point C, which is 20 miles away to the northeast; however the direct road from A to C is blocked and John must take a detour. John must travel due north to point B...

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GMAT Problem Solving (PS) | David paid off 1/5 of his total loan in January,...

Did 1/5+1/6*4/5=1/3in April: 1/6*2/3=1/9in May: 1/3*2/3=2/9A+M=1/9+2/9=1/3C

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GMAT Problem Solving (PS) | Re: During a trip, Francine traveled x percent of...

vksunder wrote:During a trip, Francine traveled x percent of the total distance at an average speed of 40 miles per hour and the rest of the distance at an average speed of 60 miles per hour. In terms...

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GMAT Problem Solving (PS) | Jeff Sackmann Algebra Challenge Set#18

If it is true that m^2 < 9 and m > -1, which of the following mustbe true?(A) m > -3(B) m>1(C) m>3(D) m<1(E) None of the aboveI believe the answer should be -1<m<3, however the...

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GMAT Problem Solving (PS) | Re: In a group of people, 3/5 have brown hair and...

Hi victor ,From where we got people with neither = 30I have done the same way , Brown hair = 60Not Brown hair = 40No brown hair + Brown eyes = 10Brown hair + Brown eyes = 45What about No brown eyes +...

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GMAT Quantitative Section | Re: GMAT Math Book

Was wondering on how to prepare for the Math section... Very relieved to come across this post.. Great effort guys "kudos"

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GMAT Problem Solving (PS) | Re: How many prime numbers between 1 and 100 are...

Bunuel wrote:Walkabout wrote:How many prime numbers between 1 and 100 are factors of 7,150 ?(A) One(B) Two(C) Three(D) Four(E) FiveMake prime factorization of 7,150 --> 7,150=2*5^2*11*13. So, 4...

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GMAT Data Sufficiency (DS) | Re: If y is the sum of x consecutive positive...

didn't thought of zero... stupid mistake...

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GMAT Data Sufficiency (DS) | Re: Which of Company X and Company Y earned the...

Done with table method, 1 and 2 alone insufficientOn combining we know expenses of x is 5/6y if y is expenses. And Y's revenue - 6 million No data of y's revenue So E

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GMAT Data Sufficiency (DS) | Re: Is m>n?

Answer : EStatement 1: m/n > 1, took a value satisfying this e.g. m=6, n=2 ; Also m= -6, n=-2 both satisfy m/n>1 but it is not clear that m>n or m<n.Statement 2 : Take value, m=2, n=6 and...

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GMAT Data Sufficiency (DS) | Re: ‎[x] denotes to be the least integer no less...

Meaning that even -0.99 will round UP to 0 and not -1??

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GMAT Problem Solving (PS) | In the formula above, a, b, c, and d are positive...

Can anyone explain this in detail?

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GMAT Problem Solving (PS) | Re: For a certain race, 3 teams were allowed to...

Why is it not Zero? Since 3 teams were allowed, it is not mandatory that all the teams should participate right? The stipulation is only on the maximum points, not minimum....what if a team doesn't...

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GMAT Data Sufficiency (DS) | Of the numbers Q, R, S, and T, which is...

Plugging in numbers may be useful..Individual statements are obviously not sufficient..combining both,we have,let -Q=4R=12Hence,S =12+4/2= 8 =AVERAGET=4+12=16....so in this case,T is highest..now,lets...

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GMAT Data Sufficiency (DS) | Re: John is trying to get from point A to point...

clipea12 wrote:John is trying to get from point A to point C, which is 20 miles away to the northeast; however the direct road from A to C is blocked and John must take a detour. John must travel due...

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GMAT Data Sufficiency (DS) | Re: The numbers above form a sequence, t1, t2,...

Can someone explain what the difference between this question here and this question is: the-sequence-s1-s2-s3-sn-is-such-that-sn-1-n-103947.htmlSeems like they kinda ask the same, but I dont...

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GMAT Problem Solving (PS) | If it is true that m^2 < 9 and m > -1, which of...

madhavmarda wrote:If it is true that m^2 < 9 and m > -1, which of the following must be true?(A) m > -3(B) m>1(C) m>3(D) m<1(E) None of the above The question tells usm^2 < 9 ,...

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GMAT Problem Solving (PS) | Re: The probability of pulling a black bal out of...

andrecrompton wrote:The probability of pulling a black ball out of a glass jar is 1/X. The probability of pulling a black ball out of a glass jar and breaking the jar is 1/Y. What is the probability...

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GMAT Problem Solving (PS) | Re: How many prime numbers between 1 and 100 are...

luckyme17187 wrote:Bunuel wrote:Walkabout wrote:How many prime numbers between 1 and 100 are factors of 7,150 ?(A) One(B) Two(C) Three(D) Four(E) Five Make prime factorization of 7,150...

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