Search found 19 matches
- by sgarnepudi
Tue Jun 25, 2013 8:38 pm- Forum: Problem Solving
- Topic: Venn Diagrams
- Replies: 6
- Views: 1751
- by sgarnepudi
Mon Jun 18, 2012 1:03 am- Forum: Sentence Correction
- Topic: SC - Verb tense (be careful for "double treat")
- Replies: 5
- Views: 1069
- by sgarnepudi
Tue Jun 05, 2012 10:34 am- Forum: Sentence Correction
- Topic: His/Him
- Replies: 7
- Views: 1567
B. in measuring the movements of the Sun and Moon are evidenced not only at *) "to" is used only if something is occasional or special events. If something is regular / habitual thing then to should not be used before the verb. *) as movements is plural its "are" and not "is...
- by sgarnepudi
Tue Jun 05, 2012 8:26 am- Forum: Sentence Correction
- Topic: Anasazi
- Replies: 8
- Views: 2235
- by sgarnepudi
Sat Jul 09, 2011 9:39 am- Forum: GMAT Math
- Topic: Word problem questions (deck of cards etc)
- Replies: 4
- Views: 1985
previous / next topic links at the bottom of the thread
Hi Team, Thanks a lot for creating such a wonderful GMAT ecosystem. Its been very useful and I regularly follow this. One thing I always felt "a nice one to have" was the Previous Topic / Next Topic links at the bottom of the threads. Sometimes the threads are long where the user has to sc...
- by sgarnepudi
Sat Jul 09, 2011 9:12 am- Forum: Suggestions and Feedback
- Topic: previous / next topic links at the bottom of the thread
- Replies: 1
- Views: 1882
I could solve it in less than 3 min even thru traditional way.
expand as (a+b)^2
(9+sqrt(80))+(9-sqrt(80))+2(sqrt(9+sqrt(80)))(sqrt(9-sqrt(80)))
=> 9+9+2(sqrt(9+sqrt(80))(9-sqrt(80))) the last part is (a+b)(a-b)
=> 18+2(sqrt(9^2-80))
=> 18+2(1)
=>20
- by sgarnepudi
Sun Sep 12, 2010 9:33 am- Forum: Problem Solving
- Topic: Multiplying roots
- Replies: 4
- Views: 1306
- by sgarnepudi
Mon Mar 29, 2010 10:05 am- Forum: Problem Solving
- Topic: algebra 1
- Replies: 4
- Views: 1034
- by sgarnepudi
Mon Mar 29, 2010 9:58 am- Forum: Problem Solving
- Topic: algebra 1
- Replies: 4
- Views: 1034
=> 1/5^m * 1/4^18 = 1/2 *10^35
=> 2 *10^35 = 5^m* 4^18
=> [2 *10^35]/ 4^18 = 5^m
=> [2 *10^35]/ 2^36 = 5^m
=> [10^35]/ 2^35 = 5^m
=> [10/ 2]^35 = 5^m
=> 5^35 = 5^m
=> m = 35
- by sgarnepudi
Mon Mar 29, 2010 9:38 am- Forum: Problem Solving
- Topic: Help with exponent problem...
- Replies: 4
- Views: 1385
- by sgarnepudi
Sun Nov 09, 2008 9:38 am- Forum: Problem Solving
- Topic: tough math problem - measurement
- Replies: 9
- Views: 4399
If could try the second one .. pls confirm if its correct or not ..
as its an eqilateral triangle all the arcs will be same so there will be 4 arcs total.. if 3arcs = 24 perimeter is 32 = 2*Phi*r so r is approx 5.9 * 2 = 11 apprx is the diameter.
- by sgarnepudi
Sun Nov 09, 2008 9:25 am- Forum: Problem Solving
- Topic: Geometry from GMATPrep-1
- Replies: 4
- Views: 1520
- by sgarnepudi
Sun Nov 09, 2008 9:15 am- Forum: Problem Solving
- Topic: arrangement
- Replies: 12
- Views: 2785
- by sgarnepudi
Sat Nov 08, 2008 10:19 pm- Forum: Problem Solving
- Topic: P&L problem ..
- Replies: 5
- Views: 1439
let fathers age is 10x+y and sons age is 10y+x
Ages an year ago are F = 10x+y-1 and S = 10y+x-1
F-S = 9x-9y which is equal to the age of the son i.e.
9x-9y = 10y+x-1 => 8x-19y+1=0 .. substitute values in x and y to make the total 0 and it happens at y=3 and x=7
so F=73 and S=37
- by sgarnepudi
Sat Nov 08, 2008 10:15 pm- Forum: Problem Solving
- Topic: algebraic method needed
- Replies: 8
- Views: 1734