Search found 25 matches
Are you sure you copied the problem correctly? I don't recognize the term "pair wise co-prime". Pair wise co primes, the way I understand is, 2^5 --> (5,2) are co primes because GCD is 1. Similarly, (3,2) and (5,4) are co primes because GCD is 1. OR 32*9*625 --> (32,9), (9,625) & (625...
- by ksundar
Wed Oct 06, 2010 12:22 pm- Forum: Problem Solving
- Topic: A number N when expressed as product of prime factors ..
- Replies: 9
- Views: 4983
The king set a big party. Each guest had to wear either a red tunic or a white tunic. In addition, some guests were allowed to wear a golden ribbon. If 250 guests did not wear a golden ribbon, and 240 guests wore red tunics, how many guests wore a white tunic without a golden ribbon? (1) 100 guests...
- by ksundar
Mon Jan 25, 2010 9:29 am- Forum: Data Sufficiency
- Topic: Roman Party - Overlapping Sets
- Replies: 6
- Views: 1451
There are four possible dress combinations: White Tunic Only Red Tunic Only Red Tunic with Golden Ribbon White Tunic with Golden Ribbon Inputs: 240 wore only Red Tunics and 250 did not wear Golden Ribbon My Explanation: 250 did not wear golden ribbon which means that they either wore White Tunic or ...
- by ksundar
Sun Jan 24, 2010 11:17 pm- Forum: Data Sufficiency
- Topic: Roman Party - Overlapping Sets
- Replies: 6
- Views: 1451
i thought ajith said we needed to prove whether its a parallelogram... u r saying a square??? i think its a rhombus! :P now i am totally confused :( Bhoomika, question is, are all the sides equal, which is a square! Rhombus: parallelogram with four equal sides; an oblique-angled equilateral paralle...
- by ksundar
Sun Jan 24, 2010 7:50 am- Forum: Data Sufficiency
- Topic: if ABCD is a quadrilateral, is AB = BC=CD=DA?
- Replies: 17
- Views: 17615
Bhoomika, question is, are all the sides equal, which is a square!bhumika.k.shah wrote:i thought ajith said we needed to prove whether its a parallelogram...
u r saying a square???
i think its a rhombus!
now i am totally confused
- by ksundar
Sun Jan 24, 2010 7:43 am- Forum: Data Sufficiency
- Topic: if ABCD is a quadrilateral, is AB = BC=CD=DA?
- Replies: 17
- Views: 17615
Statement I is not sufficient because a quadrilateral will have four sides and the sides to be perpendicular should have a point in common. i.e AB can be perpendicular to BC or AD. Statement II can be true but will not prove that all the sides are equal. Statement I and II together will not prove th...
- by ksundar
Sun Jan 24, 2010 7:39 am- Forum: Data Sufficiency
- Topic: if ABCD is a quadrilateral, is AB = BC=CD=DA?
- Replies: 17
- Views: 17615
Its a simple sum of AP... Sn = n/2(2a+(n-1)d) = 29/2(2+28) =435 IMO B Can you please explain to me the difference between this first table and the table that is to make (except additional it is 30x30 and not 5x5) ? There is already one entry for every city...? There is no difference except for exte...
- by ksundar
Thu Jan 21, 2010 9:05 pm- Forum: Problem Solving
- Topic: Dots
- Replies: 10
- Views: 3874
- by ksundar
Wed Jan 20, 2010 2:39 am- Forum: Problem Solving
- Topic: Dots
- Replies: 10
- Views: 3874
Are you sure of the option....??
Above equation can be deduced to
=2^K * 5^k/5
= 10^k/5
= 2* 10^k-1
Or am i wrong?
- by ksundar
Mon Jan 18, 2010 3:15 am- Forum: Problem Solving
- Topic: (2^k)(5^k-1)=?
- Replies: 8
- Views: 3890
I think answer is 'E', the last one, because there is no definite number of tourist given. Information available is only ratios of men to children and children to women. Both statements together will not hep finding the number of men in the tour.
- by ksundar
Sun Jan 03, 2010 4:06 am- Forum: Problem Solving
- Topic: gmat prep math
- Replies: 4
- Views: 1274