Search found 122 matches


First of all it is not the traditional work rate problem. It is more of solving the eqns. in one hour both A and B can produce 7 dozens working together 7x=77=>x=11 but since work happened for 14 hrs therefore x cannot be 11 the general eqn would be 7x+3y+4z=77 where x+y+z=14 also x<>0 and x<11 7x+3...

by rah_pandey

Tue Aug 11, 2009 10:49 pm
Forum: Problem Solving
Topic: Work and Time tough one!
Replies: 4
Views: 1120

This is wrong. what is your P(A),P(B) etc if it means only A, only B etc than correct formula is P(A)+P(B)+P(C)+P(A n B) + P(A n C) +P(B n C) + P(A n B n C) If P(A)=> people who like A either alone or in combination P(B)=> people who like B either alone or in combination than correct formula is P(A)...

by rah_pandey

Sun Jul 19, 2009 11:29 am
Forum: Problem Solving
Topic: Three Overlapping Sets Formula
Replies: 13
Views: 21406

This is a property of nos
if ax=by
than
|ax|=|by|

if you ask why did we convert to mod than answer is simple, since the original equation is in modular form so it makes sense to convert the second also into modular form and solve.

by rah_pandey

Sat Jul 18, 2009 10:23 pm
Forum: Problem Solving
Topic: |X| and |Y|
Replies: 4
Views: 1996

if probability of grain falling outside is 3/4 than the ratio of area outside the triangle to area of the triangle=3/4/1/4=3 C-A/A=3 C=nr^2 n=pi r=radius A=area of triangle =>C=4A =>A=C/4 now A=(root(3)/4)*a^2 =>rt(3)a^2=nr^2 =>a=(n/rt(3))^(1/2)r This is a good 700+ question. According to me if you ...

by rah_pandey

Sat Jul 18, 2009 12:10 pm
Forum: Problem Solving
Topic: MGMAT Prep Test 2
Replies: 6
Views: 3388

Re: Three Overlapping Sets Formula

The Three Overlapping Sets Formula Here it is: Total = Group1 + Group2 + Group3 - (sum of 2-group overlaps) - 2*(all three) + Neither By my terminology Group1= All those people who like 1 Group1=A+x+y+z A= Like Only 1 x= like 1 and 2 y= like 1 and 3 z= like 1,2 and 3 Group2= B+x+v+z B= Like Only 2 ...

by rah_pandey

Sat Jul 18, 2009 11:28 am
Forum: Problem Solving
Topic: Three Overlapping Sets Formula
Replies: 13
Views: 21406

Why are the spoilers used by use "spoilt" :-)
Never seem to work

Now i think there is some typo. Does it mean 13% increase in avg or total

by rah_pandey

Fri Jul 17, 2009 3:07 am
Forum: Data Sufficiency
Topic: average of three distinct positive integers
Replies: 14
Views: 2264

According to my analysis. 1 point increase in score in quant fetches you 5 point overall increase whereas 1 point increase in verbal 7-8. and you are almost at saturation level in quant. You know what to do now i hope? Just dont slip in maths, and work on verbal

by rah_pandey

Fri Jul 17, 2009 3:00 am
Forum: Problem Solving
Topic: how to score >=50
Replies: 5
Views: 1119

In these type of question, the problem arises from wording. so lets see Stmt 1 50% of those asked liked product 1 Stmt 2 50% of those asked liked product 1 only can you distinguish between the two Stmt 1=> it includes all those people who like 1 i.e they may like 1 only, 1+2 or 1+3 or 1+2+3 where as...

by rah_pandey

Fri Jul 17, 2009 2:50 am
Forum: Problem Solving
Topic: Three Overlapping Sets Formula
Replies: 13
Views: 21406

I hope you understand a terminating decimal. numbers liable to give a non terminating decimal are 3,6,7,9,11,.... if i have to define it then I would say that a number in denominator would yield a non terminating decimal if the (number *10)(or factors of 10) is the only way a zero can be in its unit...

by rah_pandey

Fri Jul 17, 2009 2:14 am
Forum: Problem Solving
Topic: When x/32 is expressed in decimal form
Replies: 4
Views: 1359

Re: Power Score Bible

Rah_Pandey, Can you please tell me more about this book, Can one buy this from Amozon .com store or is it available as a softcopy on net.? Please help. thanks No legal copy is available on net and so you need to buy the book from Amazon or any other vendor.LSAT CR is similar to GMAT CR but for GMAT...

by rah_pandey

Thu Jul 16, 2009 8:11 pm
Forum: I just Beat The GMAT!
Topic: 700(49,36)- Phase I over.
Replies: 11
Views: 2642

Re: 700(49,36)- Phase I over.

Dear BTG'ians, Sentence correction, is where i put in lot of effort but i think i relied too heavily on MGMAT SC guide. In my case reading some good grammar book before MGMAT SC would have been more beneficial. MGMAT is more of a brushing up guide but for me most of the concepts were new( I don't r...

by rah_pandey

Thu Jul 16, 2009 10:12 am
Forum: I just Beat The GMAT!
Topic: 700(49,36)- Phase I over.
Replies: 11
Views: 2642

Congrats! How was the your RC part? I'm having real trouble with RC . RC as I mentioned, is not different from CR and vice-versa. So if you think RC is an issue and CR is not than real problem is of comprehension, means you do not remember where the answer to the question lies. Around 60% of the qu...

by rah_pandey

Thu Jul 16, 2009 10:08 am
Forum: I just Beat The GMAT!
Topic: 700(49,36)- Phase I over.
Replies: 11
Views: 2642

700(49,36)- Phase I over.

Dear BTG'ians, Just finished my GMAT,15/07/2009. It was a wonderful experience learning from you guys. I owe a lot to the forum and think without it this score would not have been possible. I am a bit disappointed with my Quant score, not because it is less but because i could have done better. Just...

by rah_pandey

Wed Jul 15, 2009 4:40 am
Forum: I just Beat The GMAT!
Topic: 700(49,36)- Phase I over.
Replies: 11
Views: 2642

What is the source of this question?

by rah_pandey

Tue Jul 14, 2009 3:52 am
Forum: Sentence Correction
Topic: Great 42 Plains
Replies: 12
Views: 1760

D for me "One of..... communities" is plural

by rah_pandey

Tue Jul 14, 2009 3:43 am
Forum: Sentence Correction
Topic: cleveland
Replies: 5
Views: 1351