Search found 1448 matches
- by Frankenstein
Wed Aug 24, 2011 4:57 am- Forum: I just Beat The GMAT!
- Topic: My journey from 660(q47 v34) to 730(q50 v40). DON'T GIVE UP
- Replies: 20
- Views: 8677
Hi, The answer to your question has many ifs and buts. I am not experienced enough to answer your queries. From your post, I get the impression that you are assuming there will be 3 passages. We get 4 passages in GMAT more often than not. In addition to this, ignoring a passage most likely results i...
- by Frankenstein
Wed Aug 24, 2011 12:51 am- Forum: Reading Comprehension
- Topic: 40/51 verbal and 3 rd passage, STRATEGY.
- Replies: 1
- Views: 1151
For 8 x 8 chess board, you can select two columns in 2* 8c2 ways (since order doesnt matter) . in these 2 columns, you can have 8 * 7 squares selection so IMO the answer should be 2 * 8c2 * 8 * 7 = 112 * (8! / (6!*2!)) = 112 * 28 = 3136 ways can you please post the answer here? hope this helps.. Th...
- by Frankenstein
Tue Aug 23, 2011 7:29 pm- Forum: Problem Solving
- Topic: PROBLEM WITH CHESS BOARD
- Replies: 8
- Views: 2253
How many ways are there to choose two different squares on a chess board so that they are not in same column? Hi, Out of the 64 squares, 1st square can be picked in 64C1 = 64 ways. 2nd square should be picked from different column. So, it should be picked from 56 squares in 56C1 = 56 ways. As every...
- by Frankenstein
Tue Aug 23, 2011 7:24 pm- Forum: Problem Solving
- Topic: PROBLEM WITH CHESS BOARD
- Replies: 8
- Views: 2253
Hi,
There are 12x songs and each song is selected 4x times. So, total selections = 12x * 4x.
Each student selects 2x songs.
So, number of students = 12x * 4x/2x = 24x.
- by Frankenstein
Tue Aug 23, 2011 8:36 am- Forum: Problem Solving
- Topic: Math Combination Question
- Replies: 2
- Views: 1177
Hi,
Just to add to the above posts, r can be -2 or +2. So, 6th term will be either -1 or +1.
a = 1/32
ar^10 = 32
So, a^2*r^10 = 1 =>(ar^5)^2 = 1
So, Sixth term, ar^5 = -1 or +1
- by Frankenstein
Tue Aug 23, 2011 8:30 am- Forum: Problem Solving
- Topic: Geometric Progression
- Replies: 5
- Views: 1676
If a≠0, is a<0? (1)(a+b-c)/a<0 (2)c>b OA is C . Detailed explanations would be appreciated. Thanks Hi, Great job bblast. You have already solved this. Just my take: It is clear that each statement alone is insufficient. Both(1) and (2): b<c => b-c<0 (a+b-c)/a<0 => 1+(b-c/a) < 0 So, (b-c)/a < -1 W...
- by Frankenstein
Tue Aug 23, 2011 1:24 am- Forum: Data Sufficiency
- Topic: Inequality
- Replies: 6
- Views: 1127
Hi,patanjali.purpose wrote: Agree with you both long and black are adjectives modifying hair. I have also seen similar cases in which comma is used between 2 adjectives as here 'You have long,black hair'
But, Will it be not appropriate to say You have long and black hair ?
Either way, It should be fine.
- by Frankenstein
Mon Aug 22, 2011 7:58 pm- Forum: Sentence Correction
- Topic: some academicians
- Replies: 9
- Views: 5913
Hi, separate and required are both adjectives. Both modify 'course'. The usage is similar to - "You have long,black hair" long, black both modify hair. This is a valid construction. The usage of 'separately' to modify 'required' doesn't make sense because logically course should be separate.
- by Frankenstein
Mon Aug 22, 2011 8:25 am- Forum: Sentence Correction
- Topic: some academicians
- Replies: 9
- Views: 5913
Hi,
I am not 100% sure, but I don't think they will send hard copies to the test takers. I guess hard copy of score report is available upon request.
- by Frankenstein
Mon Aug 22, 2011 5:07 am- Forum: GMAT Strategy
- Topic: GMAT Score - Hardcopy
- Replies: 1
- Views: 1572
Hi,jonathan123456 wrote: Can you show how we can get the same answer by using leap year prob i.e 4
Atleast 1 + Atleast 2 + Atleast3 ?
Thanks
Sorry I am unable to understand your post. Could you make it better so that I can answer your query.
- by Frankenstein
Mon Aug 22, 2011 12:28 am- Forum: Problem Solving
- Topic: Leap year probability
- Replies: 3
- Views: 2573
The solution given in the document is different from the way i solved it. There are many problems which i have solved it using combinations and this one is confusing as even the answer choices won't fit in if i solve it using the above approach. Hi, The question never said five distinct digits. So,...
- by Frankenstein
Sun Aug 21, 2011 10:19 pm- Forum: Problem Solving
- Topic: Probability - Password problem
- Replies: 6
- Views: 4506
Hi, y varies as the sum of two quantities. Let the two quantities be q1,q2. So, y = k(q1+q2), where k is a constant. q1 varies directly as x. So, q1 = ax, a is a constant q2 varies inversely as x So, q2 = b/x y = k(ax + b/x) is the equation. We will A,B such that A = ka and B = kb. So, y = Ax + B/x ...
- by Frankenstein
Sun Aug 21, 2011 9:29 am- Forum: Problem Solving
- Topic: Variations
- Replies: 3
- Views: 1607
A study SUGGESTS that more work IS needed Why "is" and not "be" is used? thx Hi, We use 'be' instead of 'is' only in command subjunctive mood. Here the study is not commanding anyone to do more work. It is just used in indicative mood. Hence, 'is' is appropriate. If we use the s...
- by Frankenstein
Sun Aug 21, 2011 7:31 am- Forum: Sentence Correction
- Topic: subjunctive
- Replies: 3
- Views: 1042
Hi, Let's say there are 'n' people. Probability that a person was born in a non-leap year is 3/4 So, probability that all n people are born in non-leap year is (3/4)^n. So, probability that at least one of them is born in a leap year is 1 - (3/4)^n We need to find the minimum value of 'n' for which ...
- by Frankenstein
Sun Aug 21, 2011 7:02 am- Forum: Problem Solving
- Topic: Leap year probability
- Replies: 3
- Views: 2573