Search found 93 matches
A GMAT problem is not defined by how long it takes to solve. That is but one criteria. It should also meet one other criteria of Standardized Tests: Should be accesible to everyone. Hence the word Standardized. A Math major should not possess an unfailry indiscriminate advantage than say an Art Majo...
- by Musiq
Thu Aug 06, 2009 8:35 am- Forum: Problem Solving
- Topic: Does this Question look like GMAT Question?
- Replies: 19
- Views: 3636
I have been teaching the GMAT for 9+ years now. In my opinion, this is a poor representation of what the GMAT is. The GMAT tests concepts of Perms, Combs etc...but not to the extent this questions is asking and definitely not in the uninspired , non-standardized language like the question you quoted...
- by Musiq
Wed Aug 05, 2009 11:49 am- Forum: Problem Solving
- Topic: Does this Question look like GMAT Question?
- Replies: 19
- Views: 3636
Re: area of isosceles triangle
Guys, please lemme know how to calculate the area of an isosceles triangle if two of its sides and one angle are given. None of the angles are right angle.. I came across such question a few days back but can't remember it now.. Please help me with this; how to solve it or any standard formula for ...
- by Musiq
Wed Jul 08, 2009 9:10 am- Forum: Problem Solving
- Topic: area of isosceles triangle
- Replies: 4
- Views: 4861
If anything, Trig is very NON-GMAT; though it is extremely time-saving to use for someone who already knows the basic ratios. The reason this is a valid GMAT problem ,in my opinion, is that it uses special right angles ratios. There are 2 important ratios to always remember for right angles: A) In a...
- by Musiq
Wed Jul 08, 2009 8:36 am- Forum: Problem Solving
- Topic: Angles /geometry
- Replies: 8
- Views: 1845
right, but it asks for 'one of its angles', therefore it could be 30,60,90.... how should we choose one of them in the test? a GMAT question will have all the information required to get the answer. I don't feel like this is a good GMAT Question. It has to mention the angle between these two given ...
- by Musiq
Wed Jul 08, 2009 8:32 am- Forum: Problem Solving
- Topic: Angles /geometry
- Replies: 8
- Views: 1845
right, but it asks for 'one of its angles', therefore it could be 30,60,90.... how should we choose one of them in the test? Shibal, the question is not asking for "Which of the following could be one of the angles in the TRIANGLE"? The actual questions is " WHich of the following co...
- by Musiq
Wed Jul 08, 2009 8:28 am- Forum: Problem Solving
- Topic: Angles /geometry
- Replies: 8
- Views: 1845
This is a very very simple question The answer is 9 min If one reads the stimulus , one can see that plan A charges $ 0.6 of the 1st 7 min and plan B charges $0.08 per min since 0.6 is not divisible by 0.08 we know that the time is greater than 7 min the value which is common to both plan A and Pla...
- by Musiq
Mon Jul 06, 2009 7:39 pm- Forum: Problem Solving
- Topic: GMAT PREP....
- Replies: 12
- Views: 5683
Re: GMAT Numbers
The sum of the first 50 positive even integrs is 2550. What is the sum of the even integrs from 102 to 200 inclusive ?? 5100 7550 10100 15500 Ans B Is there a formula I can use to find the sum on concective numbers?? The formula given above is useful. But on a more intricate problem, the below appr...
- by Musiq
Mon Jul 06, 2009 6:47 am- Forum: Problem Solving
- Topic: GMAT Numbers
- Replies: 9
- Views: 5562
IMO B. If LCM=1188 and HCF=12. To get the product of x and y. multiply LCM with HCF,1188 x 12 = 14236. Now we can see that 6 is in the unit's digit place. Just go through the answer choices and look for combination which ends with 6 in the end.........i e 10 8 x 13 2 ..........8 x 2 = 1 6 . Answer ...
- by Musiq
Thu Jun 25, 2009 6:52 am- Forum: Problem Solving
- Topic: Problem Solving for 780+ Aspirants.
- Replies: 209
- Views: 63624
Hi Suresh The questions you post here are exciting and challenging, but are you sure GMAT(even at a 99%ile difficulty level) matches questions such as these? I doubt that. Also, where have you had the experience of 6 years as a GMAT tutor? In any case, thanks for the effort. Hi, Probably the initia...
- by Musiq
Thu Jun 11, 2009 10:17 am- Forum: Problem Solving
- Topic: Problem Solving for 780+ Aspirants.
- Replies: 209
- Views: 63624
Ketkoag,
May I ask where you got this question from....it's not very GMAT-like.
The answer is E, because there could be other colors of balls present...no where are we told that the only two kinds of balls are Green and Yellow.
- by Musiq
Wed Jun 10, 2009 9:32 am- Forum: Data Sufficiency
- Topic: probability
- Replies: 5
- Views: 1318
I agree with the posters above that it is very important to know the ratios of sides of standard Right triangles 90/45/45 and 90/60/30.
A good way to know this is being tested is if you see SQRT(2 )or SQRT(3) in the answer choices. That's almost always an indicator that you will need the ratios.
- by Musiq
Wed Jun 10, 2009 9:27 am- Forum: Problem Solving
- Topic: geometery triangle question- only one side given
- Replies: 3
- Views: 1180
Musiq, With your explanation, the answer: 2^(4-1)^2/2^(3-2) = would be 2^7 while OA: 2^8 or I'm getting crazy??? That's alrite nhai...as long as you get the concept we can come up with the answer. Given Question is a fraction....let's deal with the denominator first. Denominator = 2^ (3-2) = 2^1 Nu...
- by Musiq
Mon Jun 08, 2009 6:12 pm- Forum: Problem Solving
- Topic: GMATprep: exponent
- Replies: 5
- Views: 1502
Re: GMATprep: exponent
Anyone please explain to me why the answer is 2^8, I did it again and again, it still 2^5 2^(4-1)^2/2^(3-2) = This is a VERY good problem...classic GMAT. Please see the examples below and use PEMDAS ( BODMAS for British System). (X) ^2^3 = (X) 2*3 = (X)^6 We focussed on the Paranthesis first and th...
- by Musiq
Mon Jun 08, 2009 5:47 pm- Forum: Problem Solving
- Topic: GMATprep: exponent
- Replies: 5
- Views: 1502
IMO D A) as hyp is the dia of circle .. thus the triangle is a right angle triangle... thus hyp = 2r , where r is the radius of circle... So area of circle = pi * r^2 area of triangle = 1/2(sqrt(2)*r) * (sqrt(2)*r) Thus prob = (Area of circle - Area of triangle)/Area of Circle r will cancel out fro...
- by Musiq
Mon Jun 08, 2009 5:38 pm- Forum: Data Sufficiency
- Topic: Probab / Circles / Triangle
- Replies: 9
- Views: 2273