Search found 114 matches


Nice work kvcpk.
Here's another approach:
Assume n = 1/x
With both stmts we know that 2 or 3 when divided by x must be an integer.
This means that xa = 2 and xb = 3, when a & b are integers.
For these 2 stmts to be true 'x' has to be a fraction; hence 1/x (i.e. 'n') is an integer.

by Fiver

Mon Jul 05, 2010 6:21 am
Forum: Data Sufficiency
Topic: PRINCESTONE-N
Replies: 8
Views: 1356

Is (a+b) a multiple of 7 ? St1] a is not divisible by 7. Insuff. If both are multiples of 7 then the answer is yes. If both are non-multiples of 7 then the answer could be no. e.g. 5 & 12 St2] a-b is divisible by 7 Insuff. Again the same as above holds good Together. If both 'a' & (a-b) are ...

by Fiver

Mon Jul 05, 2010 5:54 am
Forum: Data Sufficiency
Topic: MGMAT number properties
Replies: 8
Views: 1527
by Fiver

Wed Jun 16, 2010 9:56 am
Forum: Data Sufficiency
Topic: Jackfruits and pumpkins
Replies: 16
Views: 2701

nysnowboard wrote:Payment: One crisp, new Bgmat thank you!
Just got richer :D

by Fiver

Thu Apr 29, 2010 11:59 pm
Forum: GMAT Math
Topic: Inequality type question...
Replies: 6
Views: 3030

Thank you. I understand your approach and it is more logical than the original solution. What does "LHS" stand for in your post? I can either see the solution to these kinds of problems within a minute or I am lost forever... Is there any standard way to approach them or do I just need to...

by Fiver

Thu Apr 29, 2010 11:34 pm
Forum: GMAT Math
Topic: Inequality type question...
Replies: 6
Views: 3030

@Fiver as Hrasha said we can not apply odd or even concept to rational numbers so 1/5 is out of the window . Hi, only integers have the qualities "odd" and "even"... so if we're told that a number is even, it's automatically an integer. Hi Rockeyb & Stuart, thanks for your r...

by Fiver

Thu Apr 29, 2010 11:28 pm
Forum: Data Sufficiency
Topic: working together
Replies: 21
Views: 3571

Total amount is 12.80 minus cost of shoes is 12.30.
Now if he were to play 10 games, it would cost him 12.5, which is greater than 12.3.
Hence I choose 9.

by Fiver

Thu Apr 29, 2010 6:38 am
Forum: Problem Solving
Topic: Bowling Alley
Replies: 3
Views: 2166

Can we assume that J and B are integers ? Lets say J = B = 12 mins = 1/5 hrs (I am still considering J and B = even ) so lets put this in to your calculation : Good point. Did not think about this possibility; however on second thoughts, the question says that ' Jane can paint the wall in J hours, ...

by Fiver

Thu Apr 29, 2010 1:29 am
Forum: Data Sufficiency
Topic: working together
Replies: 21
Views: 3571

pnk wrote: Need one clarification: 7x-2y>0 & x+y>0 => 8x>y (is it correct???)
Yes. Inequalities with the same sign (and only the same sign) can be added (and only added).

by Fiver

Thu Apr 29, 2010 1:14 am
Forum: Data Sufficiency
Topic: inequality
Replies: 6
Views: 1548

OA is A. But, IMO, we do not need statement 1 or 2 to answer this question. from question itself: 12p+12 = 14p. so p=6. so number of chips gamblr had before winning = 12p = 72. [p->piles] I made the same assumption when i first attempted this problem. We are assuming that the number of piles is con...

by Fiver

Thu Apr 29, 2010 1:03 am
Forum: Data Sufficiency
Topic: gambler chips
Replies: 7
Views: 1437

Jane can paint the wall in J hours, and Bill can paint the same wall in B hours. They begin at noon together. If J and B are both even numbers is J=B? (1) Jane and Bill finish at 4:48 p.m. (2) (J+B)^2=400 When J & B are both even and begin work at noon. Is J = B ? St1] Jane and Bill finish at 4...

by Fiver

Thu Apr 29, 2010 12:33 am
Forum: Data Sufficiency
Topic: working together
Replies: 21
Views: 3571

I suggest taking a logical approach. We are asked the range of a variable 'd', hence it is best to identify the max or the min value of d. Given c<4. This means that 'c' can take a value miniscule away from 4. So to take 4 as the ending point of c will make sense. 3*4 = -6d d = -2 when 'c' is just o...

by Fiver

Wed Apr 28, 2010 7:41 am
Forum: GMAT Math
Topic: Inequality type question...
Replies: 6
Views: 3030

Agree with B-19. Because of the 5 4-feet jumps, the net distance covered is 12.5 and the remaining distance is 22.5. Now the final jump must be a full and exact 3 feet jump, else the monkey would fall off the tree. Reduce 3.5 from 22.5 = 19.5. Divide 19.5 by 1.5 to get 13. Hence the total number of ...

by Fiver

Tue Apr 27, 2010 6:53 am
Forum: Problem Solving
Topic: reach the tree top
Replies: 16
Views: 2907

Agree with A.
Here's another approach:

10 extra contributed across the emptying time (et) is the same as what the filling rate (f) could do in 8 mins.
Hence 10 * et = 8 * f
et = 4/5 * f
Given et = f + 10
Hence (f + 10) * 4/5* f = 2400
(f+10) * f = 3000
60 * 50 = 3000
Hence f = 50

by Fiver

Mon Apr 26, 2010 8:52 pm
Forum: Problem Solving
Topic: the pump needs
Replies: 2
Views: 1043

cat er ina wrote:Which of the following is the closest to ∛ 2.539 (cube root of 2.539) ?
Can someone help me with this one please?
If this question were to read as 'Which of the following is the closest to 2.236 * (cube root of 2.236) ?'
it would have been quite an interesting GMAT like question.

by Fiver

Sat Apr 24, 2010 7:42 am
Forum: Problem Solving
Topic: cube root
Replies: 6
Views: 2258