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Forum profile page for GRE Math on http://www.urch.com.
This report page is the aggregated overview from a single forum: GRE Math , located on the Message Board at http://www.urch.com.
This forum profile page summarizes the general forum statistics such as: Users Activity, Forum Activity, and Top Authors, which are reported in either a table or graph below for a given reporting time period.
Additional forum profile information for "GRE Math " on the Message Board at http://www.urch.com is also shown in the following ways:
1) Latest Active Threads
2) Hot Threads for Last Week
Warning: These statistics are generated using 'best efforts' and can experience delays and reporting errors at times. Please note that such statistics do not constitute a forum's popularity and/or exact posting volumes at any given reporting period.
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Posting activity on GRE Math :
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3 Months
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Threads:
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80
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274
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960
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Post:
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166
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660
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2,822
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GRE Math Posting activity graph:
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Top authors during last week:
user's latest post:
Lottery
Published (2009-11-30 16:47:00)
Quote: Originally Posted by pHeonI P = 6/51 * 5/50 * 4/49 * 3/48 * 2/47 *1/46 = 1/[170*49*47*46] or P = 6C6/51C6 = 1/[170*49*47*46] Well my answer was 1/56C6 Someone else might want to try.... CB
user's latest post:
question from Nova
Published (2009-11-28 17:36:00)
Quote: Originally Posted by vasoolraja Nova says only I and II are correct. ONLY when x is non zero number.
user's latest post:
power prep quant...
Published (2009-11-30 23:43:00)
Quote: Originally Posted by theadroit 1)for the line with equation y=ax+b,ab ≠ 0 , the x - intercept is twice the y- intercept . which is greater?? slope of the line or 1/2 ?? answer :c y = a*x + b The slope = y/x x = 2y Then, the slope = y/2y = 1/2 The answer is C
user's latest post:
multiple of 25
Published (2009-12-01 20:14:00)
Hi Remya, isn't n^2=(p^2q)^2 ==>p^4q^2??
user's latest post:
Lottery - Page 2 - TestMagic Forums
Published (2009-12-01 18:33:00)
to ace gre :yep never seen on television that a number came twice because there choosing these numbers from a cup ... so in my opinion there`s no repetition .... does has cb an oa ... =)
user's latest post:
some dr raju's prblem /...
Published (2009-11-23 06:29:00)
Quote: Originally Posted by Md. Minuddin Let the person spends $x (20000-x)*0.4*0.1+(20000-x)*0.6*0.06=1250 Or, (20000-x)(0.04+.036)=1250 Or, (20000-x)=1250/0.076=16447 Or, x = 3553 i think the second step is wrong... it shud b (20,000-x)*0.4*0.06+(20000-x)*0.6*0.1
user's latest post:
different price levels
Published (2009-11-26 01:49:00)
Curly's soln is right. I missed ot notice they asked for the 'revenue' percentage and not 'customer' percentage.
user's latest post:
Lottery
Published (2009-11-28 17:28:00)
Only one combination wins the prize. There are 51*50*49*48*47*46/6! ways for lottery to be drawn. Probability 1/(51*50*49*48*47*46/6!) same as pHeonI
user's latest post:
Fast way with SD...
Published (2009-11-29 22:54:00)
According to the book, the correct answer is C.. here is the explanation Notice that in each of the choices (A), (B), and (E),the distributions range is 4. But in choice (C) and choice (D), the range is 5. So the correct answer is probably either choice (C) or (D). Focusing on these two choices, notice that the middle term in choice (C), 4, is skewed further away from the mean than the middle term in choice (D). Thats a good indication...
user's latest post:
PLEASE EXPLAIN - Page 2 -...
Published (2009-11-28 17:47:00)
@t3chn0n3rd: COLUMN B could give a negative number // I differ. positive power should take care of the negative sign. Thanks
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Latest active threads on GRE Math ::
Started 5 days, 14 hours ago (2009-11-28 02:20:00)
by Cypress
Need help solving this question thanks.
If x is the average of n and 6, and y is the average of n and 12, what is the average of x and y?
A. n+9/4 B. n+9/2 C. n+9 D. n+18 E. 2n+18
Started 2 days, 14 hours ago (2009-12-01 02:55:00)
by Remyag
Given n is mltiple of 5. So n^2 is a multiple of 25.
And also given n=(p)^(2q)
so n^2=(p^(2q))^2 which is option d.
Remya
Started 5 days, 2 hours ago (2009-11-28 14:31:00)
by avicenna
the first number could be any number from 1-51 so its probability will be = 1
others should match the 1st one so the occurrence will be = 1/51 for each
so the probability to win =1/51^5
what do you think?
Started 11 months ago (2009-01-04 18:01:00)
by Ravloo
Has,
You're right. The way the problem is set up right now, the average would be 29/5 = 5.8, which isn't an answer choice.
Started 2 days, 19 hours ago (2009-11-30 21:56:00)
by ace_gre
Q1.I am not getting C..Here is my approach.Cannot seem to figure out what is wrong.
y=ax+b==>y=mx+b.(standard line equation,m=slope,b= y intercept).
to find x intercept,make y=0, 0=ax+b,x=-b/a.
Also x intercept =2* y intercept.
-b/a=2*b,
a=-1/2 which is also the slope.
Q2. 5.2-(-3.4)=9.6. Midpoint = 9.6/2=4.8??
Q3. As per the drawing, area of the rectangular room= 5*6=30 sq. inches
...
Started 2 days, 17 hours ago (2009-11-30 23:37:00)
by theadroit
is it juniors .. seniors question???
Started 6 days, 15 hours ago (2009-11-27 01:48:00)
by keenkriti
plz help to solve
A group can charter a particular aircraft at a fixed total cost. If 36 people
charter the aircraft rather than 40 people, the cost per person is greater by
$12. What is the cost per person if 40 people charter the aircraft?
Started 1 week, 5 days ago (2009-11-20 19:47:00)
by Tobiobi
#2: Rule One for Quantative Comparison: Don't Compare, Calculate!!
So you have 3 Persons, and 7 Objects. If you try to share them as equal as posible, 2 persons get 2 and 1 person get 3 one-dollar-bills. What does this mean? No matter how you share the bills on the 3 people, 1 person will always have at least 3 one dollar bills. So in any combination, 1 person has at least 3 bills, so the ...
Started 5 days, 2 hours ago (2009-11-28 14:16:00)
by avicenna
A= face is not less than 2 and not greater than 5 means that it could be 5,4,3 or 2
P(A)=4/6 and since the die is tossed six times the probability would be 4/6^6
Am i right?
i mean (4/6)^6
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Hot threads for last week on GRE Math ::
Started 5 days, 2 hours ago (2009-11-28 14:31:00)
by avicenna
the first number could be any number from 1-51 so its probability will be = 1
others should match the 1st one so the occurrence will be = 1/51 for each
so the probability to win =1/51^5
what do you think?
Started 1 week, 1 day ago (2009-11-24 23:42:00)
by pHeonI
Quote:
Originally Posted by ace_gre
A networking company has two price levels one for large corporations and one for small businesses. Corporations are charged $75 /month and Small businesses are charged $175/month. If the average revenue is $100 per month per customer, then what percentage of revenue comes from large corporations?...
Started 5 days ago (2009-11-28 16:15:00)
by Articulate
Dear CB,
you are really gemearating osm tough q's.
Anyway,
a) Three prizzes can be awared to one person in 3 ways.
Therefore, Three prizzes can be awared to eight persons in 3.3.3.3.3.3.3.3. ways.
or,
straightforward they can be given in 8 C 3 ways.
Which one is right?
b) Number of groups= 8 C 3
Anyone else to enlighten?
Thanks
Started 1 week, 1 day ago (2009-11-24 18:36:00)
by EnzarGul
Started 1 week, 1 day ago (2009-11-24 22:22:00)
by ace_gre
Please review this post....It has already been discussed.
http://www.urch.com/forums/gre-math/...n-problem.h tml (Please explain this problem)
Started 1 week, 1 day ago (2009-11-25 07:48:00)
by walt526
P(all girls)=6C5/11C5=6/462=1.3%
P( all boys)=5C5/11C5=5/462=1.1%
P(>=2 girls)=1-P(0 or 1 girl)
We already know that probability of 0 girls is 5/462 (from previous), so we just need to know probability of 1 girl:
P(1girl)=5C4/11C5=5/462 (since 1 girl means choosing 4 boys)
P(>=2 girls)=1-5/462-5/462=452/462=97.8%
Started 1 week, 1 day ago (2009-11-24 18:32:00)
by EnzarGul
3-6x=?
for x=-3
Solution
3-6x=3-6(-3)
=3+18
=21
answer 21
Started 5 days, 14 hours ago (2009-11-28 02:20:00)
by Cypress
Need help solving this question thanks.
If x is the average of n and 6, and y is the average of n and 12, what is the average of x and y?
A. n+9/4 B. n+9/2 C. n+9 D. n+18 E. 2n+18
Started 5 days, 2 hours ago (2009-11-28 14:16:00)
by avicenna
A= face is not less than 2 and not greater than 5 means that it could be 5,4,3 or 2
P(A)=4/6 and since the die is tossed six times the probability would be 4/6^6
Am i right?
i mean (4/6)^6
Started 1 week, 2 days ago (2009-11-24 15:11:00)
by Buga
you know that 132 is circumference of each of these, and using it, you find its EDIT area...it believe the right answer is (A)
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