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I agree with Calista The sum of n consecutive positive integers is 45. What is the value of n? (1) n is even Now 45 is an odd nos so if n is even, it must have half even nos & half odd nos which will when summed up will lead to an odd nos, there are many possibilities like 22,23 5,6,7,8,9,10 etc INS...

by samirpandeyit62

Tue Jan 01, 2008 8:36 pm
Forum: Data Sufficiency
Topic: DS question on Sum of consecutive postive integers
Replies: 7
Views: 1820

Thanks very much Sujay, did not sufficiently analyse this one

the scenario

3z<m<4z<0 cannot arise

Thanks for pointing out. :)

Happy New Year 2008! & best of luck for ur GMAT

by samirpandeyit62

Mon Dec 31, 2007 4:06 am
Forum: Data Sufficiency
Topic: GMAT PREP QUES?
Replies: 9
Views: 2071

IMO ans should be E m + z > 0 ? here we can say that if both m,n are +ve then m+z>0 & if boh m,n are -ve then m+z is less than 0 1) m-3z>0 or m>3z here both are possible i.e m>3z>0 or 0>m>3z INSUFF 2) 4z-m>0 4z>m again both scenarios are possible here also INSUFF Combine 3z<m<4z but still we can say...

by samirpandeyit62

Mon Dec 31, 2007 12:26 am
Forum: Data Sufficiency
Topic: GMAT PREP QUES?
Replies: 9
Views: 2071
by samirpandeyit62

Sun Dec 30, 2007 11:48 pm
Forum: Data Sufficiency
Topic: round rule in GMAT
Replies: 1
Views: 1120

Hi Kansonne, As per my knowledge of the directions for geomety questions, we can extract some data from the diagram like here we can say AC is a straight line, coz it clearly looks like that in the diagram, IMO if there was an angle then it would have been clearly shown (you see a lot of geometry qu...

by samirpandeyit62

Sun Dec 30, 2007 11:45 pm
Forum: Data Sufficiency
Topic: gmatprep2..geometry
Replies: 5
Views: 1879

Q] If x,y,a,b are all positive Integers and x^3 + y^3 = a^3 + b^3, then is xy>89 since all the nos are +ve so we have 1] a^3 + b^3 = 1729 largest +ve nos that can be considered here is 12 coz 12 ^3 =1728(we need sum as 1729) hence we have 12,1 are possible values we can also evaluate some other cube...

by samirpandeyit62

Sun Dec 30, 2007 11:24 pm
Forum: Data Sufficiency
Topic: Taxi Cab Number
Replies: 4
Views: 1479

agree with amitava D

by samirpandeyit62

Sun Dec 30, 2007 10:57 pm
Forum: Problem Solving
Topic: circle
Replies: 16
Views: 3955

1) ADB = 180 -2x, ABD =x

so triangle ADB is isoceles

hence BD = 6 & BC =6

2) x=36, no side given INSUFF

A

by samirpandeyit62

Sun Dec 30, 2007 8:58 pm
Forum: Data Sufficiency
Topic: GMAT Prep 1 DS 7
Replies: 1
Views: 1121

In the xy-plane, does the line with equation y = 3x+2 contain the point (r,s)? (1) (3r+2-s)(4r+9-s)=0 i.e 3r+ 2 -s =0 or 4r+9-s =0 s =3r+2 or s =4r +9 INSUFF r,s an lie on either of the lines (2) (4r-6-s)(3r+2-s)=0 4r-6-s =0 i.e s =4r-6 or 3r+2-s =0 i.e 3r+2 =s INSUFF same as above Combine s =3r+2 o...

by samirpandeyit62

Sun Dec 30, 2007 8:56 pm
Forum: Data Sufficiency
Topic: GMAT Prep 1 DS 19
Replies: 2
Views: 1365

n^2 < 1/100

i.e n <1> -1/10

since n is to the left of 0, hence n > -1/10

i.e n > -1/10

i.e 10 > -1/n

or 1/n (reciprocal of n)< -10

A

by samirpandeyit62

Sun Dec 23, 2007 9:32 pm
Forum: Problem Solving
Topic: inequity 54
Replies: 6
Views: 1518

100+ 102 .... 200

= 2+ 4+6.... +100 + 50(100)

= 2550 + 50*100 = 7550

by samirpandeyit62

Sun Dec 23, 2007 9:28 pm
Forum: Problem Solving
Topic: Problem Solving
Replies: 6
Views: 1553

IMO the ans should be D, ofcourse stmt2 is SUFF now in stmt 1, we have a 3-4-5 triangle, largest side is 5 & 5^2 = 3^2 + 4^2 since the pythagoras theorem is satisfied here hence the triangle must be a right angle traingle coz pythagoras theorem will not hold true for any other type of triangle excep...

by samirpandeyit62

Wed Dec 19, 2007 11:48 pm
Forum: Data Sufficiency
Topic: Simple DS - help!
Replies: 2
Views: 1209

I dont see how the ans can be C If n is an integer between 10 and 99, is n < 80 ? (2) Each of the two digits of n is a prime number. for this stmt to be false we need to deduce that both n<80 & n GE (greater than or equal to) 80 are possible n<80 we have 73 but for n GE (greater than or equal to) 80...

by samirpandeyit62

Wed Dec 19, 2007 11:39 pm
Forum: Data Sufficiency
Topic: answer correct? 32
Replies: 12
Views: 3488

Hi Amitava, I agree with ur expln, but in the conclusion it is also mentioned that concluded from this experiment that the immune system protects against mental illness as well as against physical disease . the highlighted part is not supported by the premise, so one may think that the assumption wi...

by samirpandeyit62

Tue Dec 18, 2007 10:09 pm
Forum: Critical Reasoning
Topic: OG 10 CR-48
Replies: 11
Views: 3983

1) When positive integer n is divided by 3, remainder is 2. When positive integer t is divided by 5, remainder is 3. What is the remainder when product nt is divided by 15. i.e n = 3a + 2 & t =5b+3 a) n -2 is divisible by 5 i.e n =5c + 2 also n =3a +2 so 5c +2 = 3a +2 or 5c = 3a so here we can see t...

by samirpandeyit62

Tue Dec 18, 2007 9:54 pm
Forum: Data Sufficiency
Topic: GMAT Prep Question
Replies: 10
Views: 2136