Search found 34 matches


You know the definition of the length of an arc and we know the radius of this circle = 9. Thus circumference = 2*pi*9 = 18pi Say T is the centre of the circle ORP = 30 degrees so RPQ = 30 degrees but PTR = 30 degrees (isoceles triangle PTR), thus the two angles TPQ and TQP both equal 70 degrees and...

by Saffa

Wed Oct 01, 2008 1:42 am
Forum: Problem Solving
Topic: PS2
Replies: 1
Views: 1692

Are you sure the answer is E on the first Q. 1) Not suff - don't know anything about the other club 2) Not suff - ditto But together we know the exact total of the males and the exact total of the two clubs combines, so TOGETHER they are SUFF Disclaimer: Exept if there is crossover between the two c...

by Saffa

Wed Oct 01, 2008 12:36 am
Forum: Data Sufficiency
Topic: Prep Questions...please help me urgently
Replies: 3
Views: 1160

The median can only be an integer or halfway between integers. Because there are 6 numbers and the first 5 is already divisible by 6, the other number must be a multiple of 3.

THIS DOES NOT SOLVE IT THOUGH

It just help you eliminate 1 quickly

by Saffa

Tue Sep 30, 2008 3:46 am
Forum: Problem Solving
Topic: Any shortcuts for this problem??
Replies: 3
Views: 2975

you are right, but with 20% being 538 you can easily calculate what can be 100%

You've said B, but I'm quite sure it must be C

by Saffa

Sat Sep 27, 2008 8:56 am
Forum: Data Sufficiency
Topic: How many people did Apex .....
Replies: 3
Views: 3310

B?

1) Compares only minimum values so x and y can be anything - NOT SUFF

2) Compares the max of x with the minimum of y and because the minimum of y is greater than the maximum of x, y > x SUFF

by Saffa

Sat Sep 27, 2008 8:53 am
Forum: Data Sufficiency
Topic: If a < x < b ....
Replies: 3
Views: 1597

Answer is E?

Say length is l and width is w:

lw = x (surface of the table) and 2l + 2w = x (length of the strip)

but w = 3, thus

3l = x and 2l + 6 = x

because x =x

3l = 2l + 6
thus

l = 6

by Saffa

Sat Sep 27, 2008 8:47 am
Forum: Problem Solving
Topic: World problem geometry
Replies: 1
Views: 1005

Application form question

HI Stacey (and anyone who wants to comment), I'm applying to a South African MBA (at UCT) and would like some assistance in completing my application form. The application form has gone through all the essays (which I've written), my CV (which states my accomplishments, experience and skills) and th...

by Saffa

Wed Sep 17, 2008 11:46 am
Forum: Ask Stacy Blackman
Topic: Application form question
Replies: 2
Views: 1643

Let me give it another go. It is a Yes/No Question. (1) Not Suff: If the lines' equation is x = 6 then it will never intersect the sircle (thus NO) but if the line has a slope of say 8 and went through x = 1.02, it will surely intersect the sircle (thus YES). (2) Not Suff: They say nothing of where ...

by Saffa

Sun Feb 10, 2008 11:06 pm
Forum: Problem Solving
Topic: GMATPrep 6;12;15;34
Replies: 3
Views: 1581

I can't agree more with Stacey. Use Ursula's grid (somewhere on this site) and try and ID a trend in your careless errors.

When checking your answers and you're wrong, before looking at the explanation, do the question again - if you have it wrong again, it might be a concept error.

by Saffa

Fri Feb 08, 2008 3:48 am
Forum: Data Sufficiency
Topic: Careless Errors
Replies: 4
Views: 2248

Brief explanation of 1

Not to sure about 4

Apologies for handwriting

by Saffa

Fri Feb 08, 2008 3:43 am
Forum: Problem Solving
Topic: GMATPrep 6;12;15;34
Replies: 3
Views: 1581

for a#c to be equal to zero and a <> -c, the numerator of the equation needs to be equal to zero.

i.e. because a#c = (a-c)/(a+c) and a+c is not equal to (<>) 0

The the following ust be true

a - c = 0
ie. a = c

by Saffa

Fri Feb 08, 2008 3:13 am
Forum: Problem Solving
Topic: very tough combination VIC og 122
Replies: 2
Views: 1345

One way of going about it is set r = 1

then V = 1/(2x1)^3 = 1/2^3 = 1/8

set r= 1/2

V = 1/(2 x 1/2)^3 = 1/1^3 = 1/1 = 1

Thus V is multiplied by 8: 1/8 x 8 = 1

by Saffa

Fri Feb 08, 2008 3:07 am
Forum: Problem Solving
Topic: og 202
Replies: 1
Views: 1452

root r/s = s

square botn sides

r/s = s^2

multiply both sides by s

r = s^3

by Saffa

Fri Feb 08, 2008 3:03 am
Forum: Problem Solving
Topic: og ps 111
Replies: 5
Views: 2193

Mensa on your application CV?

Hi all, Would you put the fact that you're a Mensan on you B-School app.? From what I've read in other forums is that interviewers (mostly non-mensans) will not even consider your CV if you do that (this is mostly for job applications). There seems to be a stigma around Mensans that they are arrogan...

by Saffa

Sun Feb 03, 2008 11:17 pm
Forum: The Application Process
Topic: Mensa on your application CV?
Replies: 6
Views: 12659

The question should probably have stated: An integer n is prime if....Is n prime?

1) Then SUFF as n =2 or n = 3

2) SUFF (n^2) - 5n + 6 = 0
(n - 3)(n - 2) = 0

n =2 or n = 3

by Saffa

Thu Jan 31, 2008 4:01 am
Forum: Data Sufficiency
Topic: nova- d.s
Replies: 1
Views: 1399