Search found 30 matches
Probability question. kindly help
6 persons tossed a coin simultaneously 4 times in a row. What is the probability that the two outcomes are the same?..
- by bijoyajj
Sun Apr 14, 2013 11:55 am- Forum: Problem Solving
- Topic: Probability question. kindly help
- Replies: 1
- Views: 925
Each of the cucumbers in 100 pounds of cucumbers is composed of 99% water, by weight. After some of the water evaporates, the cucumbers are now 98% water by weight. What is the new weight of the cucumbers, in pounds? A) 2 B) 50 C) 92 D) 96 E) 98 Which method will you apply? 99% water in 100 pounds ...
- by bijoyajj
Wed Nov 30, 2011 10:40 pm- Forum: Problem Solving
- Topic: Cucumber
- Replies: 26
- Views: 20399
6! ways (6*5*4*3*2*1 - since color once used can't be used for other sides).. IMO arijul007 wrote:In how many ways a cube can be colored using 6 colors if each color should be used atleast once?
A. 720
B. 120
C. 20
D. 30
E. 60
- by bijoyajj
Mon Oct 31, 2011 12:45 pm- Forum: Problem Solving
- Topic: Combinatrics
- Replies: 17
- Views: 2969
750 was my dream score.. and even V40... I was always sure about Q51 though :) Even i was almost sure that you would be scoring Quant in 50 or 51 :-) Congrats yaar. You deserve this score.. If you remember the tough questions you encountered, pls jott it down.. Btw are you from iit background?.. Ca...
- by bijoyajj
Fri Oct 14, 2011 8:23 am- Forum: I just Beat The GMAT!
- Topic: 750 (Q51, V40) (First and Last Attempt) :)
- Replies: 16
- Views: 6821
A zoo has w wildebeests, y yaks, z zebras, and no other animals. If an animal is chosen at random from the zoo, is the probability of choosing a yak greater than the probability of choosing a zebra? 1) y/w+z>1/2 2) z/w+y<1/2 could you please give me the solution mathematically when we consider both...
- by bijoyajj
Mon Oct 10, 2011 3:28 am- Forum: Data Sufficiency
- Topic: animals in the zoo
- Replies: 4
- Views: 1436
Sonic wrote:I re-wrote it today and got 750 (Q49 v44). Thx everyone here.
woow really happy for you.. Let us know what you did different this time around?..specially with verbal.. Best of luck with your higher studies..
- by bijoyajj
Sun Oct 02, 2011 8:23 am- Forum: I just Beat The GMAT!
- Topic: Bombed my Gmat (Update: retook, 750 (Q49 V44)
- Replies: 27
- Views: 16729
if m,n are both two digit integers. and m-n=11x, is x an integer? 1) the tens digit and the unit digit of m are the same. 2) m+n is a multiple of 11. Q is asking whether m-n is multiple 11 or not? stat1) the stat give an information about one of the element (m). we do not have any info abt the anot...
- by bijoyajj
Wed Sep 28, 2011 10:44 pm- Forum: Data Sufficiency
- Topic: multiple 11
- Replies: 2
- Views: 1033
All of the students at Music High School are in the band, orchestra, or both. 80% of the students are in only one group. There are 119 students in the band. If 50% of the students are in the band only, how many students are in the orchestra only? 119 students is the sum of band only + both students...
- by bijoyajj
Tue Sep 27, 2011 10:28 pm- Forum: Problem Solving
- Topic: Venn Diagrams
- Replies: 4
- Views: 1079
sparkle6 wrote:Is |x-y| > |x-z| ?
1) |y| > |z|
2) x < 0
|x-y| > |x-z|.. i think the question gets reduced to is |y| > |z|?.. which is what statement 1 is.. IMO a
- by bijoyajj
Sun Sep 25, 2011 11:00 am- Forum: Data Sufficiency
- Topic: Inequalities
- Replies: 3
- Views: 1198
If we just modify the first statement as Square root (9x^3-4*x+4) = 2,the we would av got 3 solutions (0,-2/3,2/3)..hence statement 1 insufficient 
.. May be gmat won't test this way.. thanks Brent for helping me out..[/img]
- by bijoyajj
Sun Sep 25, 2011 10:45 am- Forum: Data Sufficiency
- Topic: Can two statements in DS contradict each other ?
- Replies: 14
- Views: 2607
What is the value of x? (1) x^2 = 16 (2) x + 1 = 4 Lets start solving from statement 2.. it explicitly gives the value of x as 3..Hence sufficient. Statement (1).. Instead of start solving the equation, since we know value is 3, we substitute and see if the equation holds good.. here equation fails....
- by bijoyajj
Sun Sep 25, 2011 12:01 am- Forum: Data Sufficiency
- Topic: Can two statements in DS contradict each other ?
- Replies: 14
- Views: 2607
Consider this example. What is the value of x? (1) x+1= 4 (2) x^2 - 5x + 6 = 0 Here, we can see that statement 1 is sufficient (since x=3) If we plug x=3 into statement 2, we see that it is a solution here, but this doesn't tell us anything about whether or not statement 2 is sufficient since equat...
- by bijoyajj
Sat Sep 24, 2011 9:45 am- Forum: Data Sufficiency
- Topic: Can two statements in DS contradict each other ?
- Replies: 14
- Views: 2607
Two water tanks, X and Y, were drained simultaneoulsy. If X contained 30 more gallons of water than Y, and both tanks became empty at the same time, how long did it take the tanks to become empty? 1) For every gallon drained from tank Y, 2 gallons were drained from tank X. 2) Tank Y was drained at ...
- by bijoyajj
Sat Sep 24, 2011 2:30 am- Forum: Data Sufficiency
- Topic: Rate question
- Replies: 2
- Views: 819
For example, let's say that we are asked to determine the value of x. If this were the case, you would never see the following statements: (1) x+2=5 (2) x-3=7 In one case x=3, and in the other case x=10 As such, these contradicting statements would never appear in an actual GMAT question. Cheers, B...
- by bijoyajj
Sat Sep 24, 2011 1:59 am- Forum: Data Sufficiency
- Topic: Can two statements in DS contradict each other ?
- Replies: 14
- Views: 2607
draw a table with one grid for L & B (horizontally) and like & dislike vertically.. just fill in.. You can see that once we get the total no of ppl.. grid gets solved .. So if ever any choice is telling about any number then it gets solved as we can deduct total from it.. Both choices suffice.
- by bijoyajj
Fri Sep 23, 2011 8:29 am- Forum: Data Sufficiency
- Topic: Gmat Prep. Gmat experts pls explain with tabular format
- Replies: 3
- Views: 1087