Search found 19 matches
@ papgust,
How can we say that if ab <33 then ab can also be less than 152?
Also, b-a .... we get -8<b-a<14 ......isnt it much closer to option C rather than 33-152?
- by 2009wish
Fri Jan 08, 2010 3:01 am- Forum: Problem Solving
- Topic: could someone help me how to approach this problem
- Replies: 5
- Views: 1447
- by 2009wish
Thu Jan 07, 2010 9:59 pm- Forum: Problem Solving
- Topic: In the xy-plane
- Replies: 6
- Views: 8211
- by 2009wish
Tue Nov 11, 2008 7:51 am- Forum: Sentence Correction
- Topic: Kaplan SC
- Replies: 6
- Views: 1666
Because Albert is the most experienced and he is there the best ballet dancer in the company, he is being increasingly viewed by the director as the best candidate for the role of the Nutcracker. A)and he is there the best ballet dancer in the company, he is being increasingly viewed B)he is therefo...
- by 2009wish
Tue Nov 11, 2008 6:20 am- Forum: Sentence Correction
- Topic: Explanation please IV, question from Manhattan verbal book
- Replies: 13
- Views: 1892
- by 2009wish
Wed Oct 29, 2008 3:48 am- Forum: Problem Solving
- Topic: A 3-member rowing team
- Replies: 9
- Views: 2158
A takes x hrs to complete one work
B takes 5y hrs to complete one work
together they take 2z hrs
hence 1/x + 1/5y = 1/ 2z (as rate is inversely proportional to time taken)
solving we get :
y= 2xy / 5 (x - 2z)
- by 2009wish
Sun Oct 26, 2008 5:45 pm- Forum: Problem Solving
- Topic: work machine A & B
- Replies: 8
- Views: 3290
Is plugging in the best method for this question ? or is there any logical mathematical approach to this problem?
Request suggestions from forum experts
- by 2009wish
Sun Oct 26, 2008 1:36 am- Forum: Problem Solving
- Topic: potive integers
- Replies: 5
- Views: 1437
IMO its 3 . whats the OA? ratio of the square tile inside to the total area of the larger tile will be - 25x / ( 25+39)x = 25x / 64x x prefarably should be a perfect square number 1. let x be 4 ------- then the sides will be 10 and 16 ---- width will be 3 2.let x be 9 -----------sides will be 15 and...
- by 2009wish
Sat Oct 25, 2008 10:58 pm- Forum: Problem Solving
- Topic: Square countertop
- Replies: 12
- Views: 10549
Also we can find out the area of trapezium BADE -1 /2 (sum of parallel sides * distance between them )+ area of the triangle BCD( sq rt s ( s-a)(s-b)(s-c) ) where s is a+ b+ c /2
- by 2009wish
Sat Oct 25, 2008 6:07 am- Forum: Problem Solving
- Topic: area of the quadi;lateral
- Replies: 6
- Views: 1661
a direct approach is using the intercept formula :
x/ a + y/b= 1 (where a and b are the intercepts on x and y axis)
we get the equation as-- 5x +7y= 35
susbtituting the answer choices ..... we have D as the answer
- by 2009wish
Sat Oct 18, 2008 9:43 am- Forum: Problem Solving
- Topic: Co-ordinate Geo
- Replies: 4
- Views: 2556
- by 2009wish
Fri Oct 17, 2008 11:34 pm- Forum: Problem Solving
- Topic: work problems
- Replies: 9
- Views: 2074
- by 2009wish
Fri Oct 17, 2008 11:28 pm- Forum: Problem Solving
- Topic: Questions from Gmat Prep
- Replies: 7
- Views: 3856
1.
work done by A+B in one day will be 1/ 6. similarly it will be 1/ 8 and 1/ 12 for B+C & C+A.
Adiing the above equation we get.........
2( A+B+C) =1 /6 +1/ 8+ 1/ 12
so work done by A+B+C in one day will be =3/ 16
3/ 16 -1/6 =work done by C in one day ie......48 ; A is 16
C is the answer
- by 2009wish
Fri Oct 17, 2008 10:08 pm- Forum: Problem Solving
- Topic: work problems
- Replies: 9
- Views: 2074
we can find out what angle does arc RTU subtend at the centre.
it equals= 60
triangle ROU (O being the center ) ...... forms equilateral triangle
thus RU = 4
- by 2009wish
Fri Sep 26, 2008 6:21 am- Forum: Problem Solving
- Topic: length of Segment
- Replies: 6
- Views: 3845
from the figure---
R + T = 90
2 RSQ + R =180
2TSU +T =180
from the above three equations we can find x
so ....C is the ans
- by 2009wish
Fri Sep 26, 2008 5:39 am- Forum: Problem Solving
- Topic: GMAT Prep - 1
- Replies: 1
- Views: 1362