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Quantitative Section - Online Tutoring
Hello, I am an online GMAT tutor with over 3 years of experience and have taught over 300 students for the GMAT. I handle only the Quantitative Section . I've been quite active on this community and you can read my posts to get a better idea about my teaching skills. I'm planning to enrol a few stud...
- by aneesh.kg
Fri Jun 13, 2014 7:56 am- Forum: GMAT Strategy
- Topic: Quantitative Section - Online Tutoring
- Replies: 0
- Views: 1206
What is the value of x/yz? 1. x=(y/2) and z=(2x/5) 2. (x/z)=(5/2) and (1/y)=(1/10) 2 approaches. (A) SYMBOLIC: try to manipulate the expressions involving variables to get the expression you want (namely, x/yz). the best way to do this is to rearrange the expressions so that all the variables are o...
- by aneesh.kg
Fri Jul 05, 2013 3:15 am- Forum: Data Sufficiency
- Topic: gmat prep number properties
- Replies: 7
- Views: 2403
Hi Anurag/Instructors, I have a confusion here in this Q. as to How you & the OG deduce: 1/r +1/s as (r+s)/rs. I know it is by taking LCM but one IMO shouldnt generalize it. As teh same holds true for 1/4+1/3 BUT CANNOT for 1/4 +1/12. SO IMO: the solution should be: (from A) r-s=4rs => s=4rs-r ...
- by aneesh.kg
Fri Jul 05, 2013 2:34 am- Forum: Data Sufficiency
- Topic: OG QR 2nd Ed. DS #124
- Replies: 7
- Views: 2288
Hello GMAT Aspirants, My name is Aneesh, and I'm a IIT Madras Alumnus. I've been helping people for GMAT over the past 19 months and must've helped over 200 GMAT students till date. (I handle the QA section). I am also heavily active on BeatTheGMAT with ~380 posts and have a youtube channel for GMAT...
- by aneesh.kg
Thu May 16, 2013 4:52 am- Forum: GMAT Strategy
- Topic: Study Group in Pune
- Replies: 7
- Views: 2366
Is |X|= A-B? 1) X=A-B 2) X=B-A Still trying to understand the logic if absolute value DS. |X| is always a positive number. If X is positive, |X| = X, but if X is negative, |X| = -X. And Yes, |0| = 0. Statement 1: X = A - B If A - B is a positive number then its modulus, i.e. |X| = |A - B| = A - B, ...
- by aneesh.kg
Thu Mar 21, 2013 11:55 pm- Forum: Data Sufficiency
- Topic: Absolute DS
- Replies: 34
- Views: 15000
Challenge #3: Percentages
The population of a city, which was X in January, increases by a certain amount in February of the same year and becomes Y. Then Y increases by a certain amount in March of the same year and becomes Z. Is the percentage change from X to Y greater than that from Y to Z? (1) Y - X = Z - Y (2) X = 150,...
- by aneesh.kg
Sun Feb 10, 2013 11:21 am- Forum: Data Sufficiency
- Topic: Challenge #3: Percentages
- Replies: 10
- Views: 2302
Statement 1:
x = (3)^0.3 or - (3)^0.5
INSUFFICIENT
Statement 2:
x = Modulus of something
Therefore x must be 0 or greater than zero
INSUFFICIENT
Combining the two, x = (3)^0.5, which is positive.
Therefore, [spoiler][C][/spoiler] is correct.
- by aneesh.kg
Thu Jan 31, 2013 10:35 pm- Forum: Data Sufficiency
- Topic: Challenge#1 (Modulus/Absolute Value)
- Replies: 6
- Views: 2658
Hemanth, good try! But [spoiler] [/spoiler] is not the correct answer. Lets modify the problem slightly to make two new problems. Modification 1: Is x non-negative? (1) |x^2| = 3 (2) |6 - 5y| = x Modification 2: If y is an integer, is x positive? (1) |x^2| = 3 (2) |6 - 5y| = x If you solve these, yo...
- by aneesh.kg
Wed Jan 30, 2013 9:50 am- Forum: Data Sufficiency
- Topic: Challenge#1 (Modulus/Absolute Value)
- Replies: 6
- Views: 2658
Thank you Brent! I'd solve this in a similar fashion, albeit without oversimplification. (Maybe you did that for the sake of explaining well) The difference between D and B is twice the difference between each consecutive element. D - B = 3^15 - 3^13 = 3^13 * (3^2 - 1) = 8 * 3^13 Difference between ...
- by aneesh.kg
Wed Jan 30, 2013 9:45 am- Forum: Problem Solving
- Topic: Challenge#2 (Numbers/Exponents)
- Replies: 7
- Views: 1979
I don't think I understand your query very well. y has two possible values from the second statement: -8 and 14. When you are combining the two statements you can substitute these two values in statement(1) to see with which one of the values does Statement(1) agree. Substitute '-8': 3 |x^2 - 4| = -...
- by aneesh.kg
Tue Jan 29, 2013 10:13 am- Forum: Data Sufficiency
- Topic: ABSOLUTE VALUES (CONFUSION!!)
- Replies: 4
- Views: 1577
What is the value of y? (1) 3|x2 – 4| = y – 2 (2) |3 – y| = 11 Answer: C (source: MGMAT) I learnt somewhere that whenever there is an absolute value question, one obtains two values. The two values must be plugged into the equation normally and checked as one of them will yield a value equiva...
- by aneesh.kg
Tue Jan 29, 2013 9:46 am- Forum: Data Sufficiency
- Topic: ABSOLUTE VALUES (CONFUSION!!)
- Replies: 4
- Views: 1577
Challenge#2 (Numbers/Exponents)
C#2:
If A, B, C and D are evenly spaced on the number line as shown below
A....B....C....D
and B = 3^13 and D = 3^15, then what is the value of A?
(A) 3^12
(B) 4(3^13)
(C) - 4(3^13)
(D) - 3^12
(E) - 3^14
OA after sometime.
Source: self-designed
- by aneesh.kg
Tue Jan 29, 2013 9:00 am- Forum: Problem Solving
- Topic: Challenge#2 (Numbers/Exponents)
- Replies: 7
- Views: 1979
Challenge#1 (Modulus/Absolute Value)
Hi people, Here's a tricky problem on modulus. I gave this problem to my students in my class today and everybody made mistakes in their first attempt. Lets see if you guys can get it right in the first attempt. C#1: Is x positive? (1) |x^2| = 3 (2) |6 - 5y| = x OA after some time. Source: self-desi...
- by aneesh.kg
Tue Jan 29, 2013 8:51 am- Forum: Data Sufficiency
- Topic: Challenge#1 (Modulus/Absolute Value)
- Replies: 6
- Views: 2658
Pune GMAT Prep
Hello GMAT Aspirants from Pune, My name is Aneesh, and I'm an IIT Alumnus. I've been helping people for GMAT over the past 19 months and must've helped over 200 GMAT students till date. (I handle the QA section). I have also been heavily active on this community. I've taught a variety of students so...
- by aneesh.kg
Thu Jan 03, 2013 9:54 am- Forum: GMAT Strategy
- Topic: Pune GMAT Prep
- Replies: 1
- Views: 1356
Hi guys! Can anyone help me with this? "Any decimal that has only a finite number of nonzero digits is a terminating decimal. For example, 24, .82, 5.096 are three terminating decimals. If r and s are positive integers and the ratio r/s is expressed as a decimal, is r/s a terminating decimal? ...
- by aneesh.kg
Mon Oct 29, 2012 11:48 pm- Forum: GMAT Math
- Topic: Day 6 - Data Sufficiency Practice (OG, 13th Ed), Problem 148
- Replies: 2
- Views: 1645