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GMAT Problem Solving | Forum profile
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Forum profile page for GMAT Problem Solving on http://www.urch.com.
This report page is the aggregated overview from a single forum: GMAT Problem Solving , 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.
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2) Hot Threads for Last Week
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Posting activity on GMAT Problem Solving :
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3 Months
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Threads:
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49
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228
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969
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Post:
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108
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525
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2,597
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GMAT Problem Solving Posting activity graph:
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Top authors during last week:
user's latest post:
GPrep Question
Published (2009-11-28 17:25:00)
Excellent! thanks meiloya that helps.
user's latest post:
GMat Prep - Averages
Published (2009-11-29 23:58:00)
confused with this problem, really good and too hard to me... any way my pick for D-13 my way of thinking..weight average (2*0+12*1+10*2+5*3+1*x)/30=2 x=13 what is 5*3+1*x.. x-the greatest number of books for one single person as we know that 30-2-12-10=6=(5+1) persons borrow at least 3 books, i admit that exactly 5 persons borrow 3 books and the last one will borrow max number the rest is clear from solution hi bobogee what is oa ????
user's latest post:
Permutations and Combinations
Published (2009-11-25 16:33:00)
Let Letters be L1,lL2,L3 Digits be D1,D2,D3 So we have info for L1,L2 and D3. L3= 26 ( no of alphabets) D1=10 D2=10 so combination is 26*10*10
user's latest post:
GPrep Question 1
Published (2009-11-28 18:11:00)
Quote: Originally Posted by prathns For a finite sequence of non zero numbers, the number of variations in sign is defined as the number of pairs of consecutive terms of the sequence for which the product of the two consecutive terms is negative. What is the number of variations in sign for the sequence 1, -3, 2, 5, -4, -6 ? a)One b)Two c)Three d)Four e)Five OA : SPOILER: C Can someone explain the step by step procedure to solve and what...
user's latest post:
GMAT Prep Questions/ Speed...
Published (2009-11-25 08:27:00)
2. First we need to calculate the distance travelled by cyclist before he stops to wait. He travelled for 5 min or 1/12 hr so that's time. And relative speed will be 20-4 = 16( as cyclist and hiker are going in same direction ). so distance travelled by hiker = 16 * 1/12 = 4/3 miles Now hiker has to travel this distance of 4/3 mile with his speed = 4 mph..Here no relative speed because cyclist is waiting. Thus time taken by hiker = (4/3)...
user's latest post:
GMAT Prep Question 3
Published (2009-11-28 10:06:00)
Perimeter of an isosceles right triangle is 16+16root2. What is the length of the hypotenuse of the triangle? a)8 b)16 c)8root2 d)16root2 OA SPOILER: B
user's latest post:
GMAT Prep question on Arithmetic...
Published (2009-11-30 11:43:00)
Pls find attached the GMAT prep question on Arithmetic sequence: Arithmetic Sequence question.doc Pls let me know if attachment is not opening...
user's latest post:
GPrep Question 2
Published (2009-11-30 12:39:00)
200 6 ounces is the same as 100 12 ounces and the ratio of concentrate to total solution is 1:4; hence 25 is the answer.
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Latest active threads on GMAT Problem Solving ::
Started 5 days, 11 hours ago (2009-11-29 13:07:00)
by marianha
hard sequence
If An=200+0.2*A(n-1), and A1=200, A50 will fall in which of the following regions?
1)(230,239),
2)(240,250),
3) (251,260)
4) (270,280)
5) (290,300)
Started 1 month, 2 weeks ago (2009-10-19 13:09:00)
by Uttara
Quote:
Originally Posted by aras82
70, 75,80,85,90,105,105,130,130,130
The list shown consists of the times, in seconds, that i took each of 10 schoolchildren to run a distance of 400 on of meters. If the standard devastation of the 10 running times is 22.4 seconds, rounded to the nearest tenth of a second, how many of the 10 ...
Started 1 month, 1 week ago (2009-10-25 18:13:00)
by StudyGMAT
Squaring both the sides,
17+2(Sqrt 66) = (a+b)+2(sqrt ab)
Therefore, a+b=17 and ab = 66, giving a=11, b=6
Hence, a-b=5
Started 4 days, 8 hours ago (2009-11-30 15:57:00)
by DMoney
10.... Notice the pattern... each number is 3 less than the preceding... T1=23, T2=20, T3=17.... T10=-4
When N=10, Tn=-4
Started 6 days, 14 hours ago (2009-11-28 10:02:00)
by prathns
GPrep Question 2
According to the directions on the can of frozen orange juice concentrate, 1 can of concentrate is to be mixed with 3 cans of water to make orange juice. How many 12 ounces cans of the concentrate are required to prepare 200 6 ounces servings of orange juice?
a) 25
b) 34
c) 50
d) 67
e) 100...
Started 5 days, 2 hours ago (2009-11-29 22:04:00)
by clock60
let it be total 100%
total round trip-x%
20+0,6x=x
x=50
50/100=50% so C
Started 5 days ago (2009-11-29 23:58:00)
by clock60
confused with this problem, really good and too hard to me... any way my pick for D-13
my way of thinking..weight average
(2*0+12*1+10*2+5*3+1*x)/30=2
x=13
what is 5*3+1*x..
x-the greatest number of books for one single person
as we know that 30-2-12-10=6=(5+1) persons borrow at least 3 books, i admit that
exactly 5 persons borrow 3 books and the last one will borrow max number
the ...
Started 6 days, 14 hours ago (2009-11-28 10:06:00)
by prathns
GMAT Prep Question 3
Perimeter of an isosceles right triangle is 16+16root2.
What is the length of the hypotenuse of the triangle?
a)8
b)16
c)8root2
d)16root2
OA SPOILER: B
Started 5 days, 15 hours ago (2009-11-29 09:37:00)
by ramiy
books
In the economy mode, a printer prints twice as fast as in the optimal quality mode. If after working for 20 minutes in the optimal quality mode and 40 minutes in the economy mode the printer printed 120 pages, how long would it take the printer to print 120 pages in the optimal quality mode?
35 minutes
40 minutes
50 minutes...
Started 3 weeks, 2 days ago (2009-11-11 17:02:00)
by Zealot
IMO 5m
I would use plugging in here: assume m=60 mins/ 1 hr and c=3
5c=15 in 300 mins/ 5 hrs
plug in the value of m as 60 mins/ 1 hr to check the solution 300 mins/ 5 hrs in the options the answer comes 5m
HTH
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Hot threads for last week on GMAT Problem Solving ::
Started 1 week ago (2009-11-27 19:55:00)
by clock60
2+2=2^2
2^2+2^2=2^3
2^3+2^3=2^4
2^4+2^4=2^5
2^5+2^5=2^6
2^6+2^6=2^7
2^7+2^7=2^8
2^8+2^8=2^9
so 2^9
Started 6 days, 14 hours ago (2009-11-28 10:06:00)
by prathns
GMAT Prep Question 3
Perimeter of an isosceles right triangle is 16+16root2.
What is the length of the hypotenuse of the triangle?
a)8
b)16
c)8root2
d)16root2
OA SPOILER: B
Started 1 week, 3 days ago (2009-11-24 22:35:00)
by clock60
it total we have two different committee
let be military-m
civil- c
m m m c c-first one
m m c c c-second
5C3*9C2+5C2*9C3=10*36+10*84=360+840=1200
Started 6 days, 14 hours ago (2009-11-28 10:02:00)
by prathns
GPrep Question 2
According to the directions on the can of frozen orange juice concentrate, 1 can of concentrate is to be mixed with 3 cans of water to make orange juice. How many 12 ounces cans of the concentrate are required to prepare 200 6 ounces servings of orange juice?
a) 25
b) 34
c) 50
d) 67
e) 100...
Started 5 days, 11 hours ago (2009-11-29 13:07:00)
by marianha
hard sequence
If An=200+0.2*A(n-1), and A1=200, A50 will fall in which of the following regions?
1)(230,239),
2)(240,250),
3) (251,260)
4) (270,280)
5) (290,300)
Started 1 week, 1 day ago (2009-11-26 16:53:00)
by junoon
The trick in the first question is to simply choose a number whose factorial will have all the prime factors of 990 (remember, we need the smallest number, so 990 would do and we need not go for its multiples)
And, using the above logic, 11! has all the prime factors of 990.
Started 6 days, 3 hours ago (2009-11-28 21:24:00)
by clock60
as for q 1
Quick Feedback on This Question GMAT PREP
Started 6 days, 6 hours ago (2009-11-28 18:07:00)
by OneDayI'll
In this sequence, we have the terms:
n1 = 1
n2 = -3
n3 = 2
n4 = 5
n5 = -4
n6 = -6
The only way we get a negative product is if we multiply a positive by a negative. There are 5 possible products of consecutive terms:
n1 * n2 = -3
n2 * n3 = -6
n3 * n4 = +10
n4 * n5 = -20
n5 * n6 = +24
Exactly three of the products are negative.
Started 5 days, 15 hours ago (2009-11-29 09:37:00)
by ramiy
books
In the economy mode, a printer prints twice as fast as in the optimal quality mode. If after working for 20 minutes in the optimal quality mode and 40 minutes in the economy mode the printer printed 120 pages, how long would it take the printer to print 120 pages in the optimal quality mode?
35 minutes
40 minutes
50 minutes...
Started 5 days, 2 hours ago (2009-11-29 22:04:00)
by clock60
let it be total 100%
total round trip-x%
20+0,6x=x
x=50
50/100=50% so C
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