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Club X has more than 10 but fewer than 40 members. 10 < X < 40 Sometimes the members sit at tables with 3 members at one table and 4 members at each of the other tables, and sometimes they sit at tables with 3 members at one table and 5 members at each of the other tables. 3+4N = 3+5M = X Based on ...

by rijul007

Tue Sep 11, 2012 8:19 am
Forum: Problem Solving
Topic: Too many tables, too many members!
Replies: 4
Views: 2243

Q. 199 on OG 13 (0.99999999 ÷ 1.0001) – (0.99999991 ÷ 1.0003) = (A) 10^-8 (B) 3(10^-8) (C) 3(10^-4) (D) 2(10^-4) (E) 10^-4 The right answer is D . Is there any shortcut for this question? The solution in the OG is tedious. (0.99999999 ÷ 1.0001) - (0.99999991 ÷ 1.0003) (9999.9999/10001) - (999...

by rijul007

Tue Sep 11, 2012 8:11 am
Forum: Problem Solving
Topic: Complex decimal problem - any shortcuts?
Replies: 8
Views: 2024

Hi I don't know if these kind of Qs are asked in GMAT, but they are asked in different admission tests. Here is the Q: At what angle the hands of a clock are inclined at 15 minutes past 5? The answer is 67 1/2 degree. Can anyone explain, why? Thanx A clock has 60 divisions Each division = 360/60 = ...

by rijul007

Sun Sep 09, 2012 11:28 am
Forum: Problem Solving
Topic: Clocks Q
Replies: 1
Views: 624

The average (arithmetic mean) of a list of 8 different positive integers is 23. Which of the following is the greatest possible range of this list of numbers? (A)149 (B)155 (C)156 (D)168 (E)183 Please explain... The range of the set is from smallest to the greatest positive integer in the set You c...

by rijul007

Sun Sep 09, 2012 11:23 am
Forum: Problem Solving
Topic: That Mean Range
Replies: 4
Views: 2829

A garden has only red, green and yellow flowers, 57% of the flowers have red colour, 35% have green colour and 50% have yellow colour.If no flower has all three colors, what percentage of the flowers has only one colour? [A] 32 50 [C] 55 [D] 58 [E] 82 http://s17.postimage.org/ivg3jx0kb/set.jpg g = ...

by rijul007

Sun Sep 09, 2012 8:30 am
Forum: Problem Solving
Topic: Sets
Replies: 5
Views: 1676

If X and Y are positive integers is Y odd? 1. (Y+2)!/X! is odd integer Here, Statement 1 can also be proved insufficient If (Y+2)!/X! is Odd then following two possibilities exist - --> Y=odd, X=Y+1 Then, (Y+2)!/(Y+1) = (Y+2) As Y is odd, Y+2 is also odd --> (Y+2)!/X! = 1 (Y+2)! = X! This can state...

by rijul007

Sat Sep 08, 2012 8:57 pm
Forum: Data Sufficiency
Topic: Data Sufficiency From Adv Quant
Replies: 3
Views: 775

(1% of x gallon) + (2% of y gallons) + (3% of z gallons) = 1.5% of (x+y+z) gallons
((x/100)+(2y/100)+(3z/100))/(x+y+z) = 1.5/100

(x+2y+3z)/(x+y+z) = 1.5
x+2y+3z = 1.5x+1.5y+1.5z
0.5y+1.5z = 0.5x
x = y+3z

Option A

by rijul007

Sat Sep 08, 2012 2:30 pm
Forum: Problem Solving
Topic: Milk Problem
Replies: 2
Views: 679

Hi rijul, I agree with you on the 1339 as answer... just clarify one thing - I subtracted 324713 from 458513 and got it as 1338... why have you added a "1" to 1338 ? Ofcourse as 1338 is not in the answer list, it has to be 1339 but plz help me with the logic of adding one to 1338. Subtracting 32471...

by rijul007

Sat Sep 08, 2012 1:00 pm
Forum: Problem Solving
Topic: how many integers between
Replies: 10
Views: 1682

avada wrote:a=/=0, is (1/a)>(a/b^4=3)?
I'm not sure what this means.

by rijul007

Sat Sep 08, 2012 12:17 pm
Forum: Data Sufficiency
Topic: Data Sufficiency From Advanced Quant 2
Replies: 2
Views: 549

I am completely and utterly confused by this question. If X and Y are positive integers is Y odd? 1. (Y+2)!/X! is odd integer 2. (Y+2)!/X! is greater than 2 Answer: C Statement 1 1. (Y+2)!/X! is odd integer Check when this can be possible-- Only when Y+2 = X+1 and Y+2 is odd If Y+2 is odd, then Y i...

by rijul007

Sat Sep 08, 2012 12:13 pm
Forum: Data Sufficiency
Topic: Data Sufficiency From Adv Quant
Replies: 3
Views: 775

How many integers between 324,700 and 458,600 have tens digit 1 and units digit 3?

The integers would be 324713,324813,324913,........,458513
The number of integers = 4585-3247+1 = 1338+1 = 1339

The answer should be E
Are you sure about the answer provided by you? :-/

by rijul007

Sat Sep 08, 2012 12:07 pm
Forum: Problem Solving
Topic: how many integers between
Replies: 10
Views: 1682
by rijul007

Wed Sep 05, 2012 12:05 pm
Forum: Lounge
Topic: Ian...plz rply!
Replies: 11
Views: 1738
by rijul007

Wed Sep 05, 2012 10:03 am
Forum: Lounge
Topic: Ian...plz rply!
Replies: 11
Views: 1738

1)In how many ways can the letters of the word DOUBLE be rearranged such that the order in which the vowels appear in the word does not change? Total no of ways in which alphabets of DOUBLE can be arranged = 6! = 720 The no of ways the vowels can be ordered = 3! = 6 We need these vowels in one part...

by rijul007

Tue Sep 04, 2012 8:31 am
Forum: Problem Solving
Topic: Tough permutation problem
Replies: 6
Views: 2597

Official Guides are the best resources available for practicing questions.

by rijul007

Tue Sep 04, 2012 8:09 am
Forum: Critical Reasoning
Topic: Best Material for CR Practice
Replies: 3
Views: 820