Search found 22 matches


Remainder problem

Would love some help with this problem. I struggle with remainder questions :(. If n is a positive integer and r is the remainder when (n-1)(n+1) is divided by 24, what is the value of r? 1. 2 is not a factor of n 2. 3 is not a factor of n If someone can show me the best strategy for tackling this s...

by briology

Fri Nov 25, 2011 9:28 am
Forum: Data Sufficiency
Topic: Remainder problem
Replies: 7
Views: 1569

Confusing Absolute Value Q

Hi All--

I find this absolute problem confusing--it seems nonsensical to me. Can someone help?

if Y>=0, what is the value of X?

1. |x-3|>=Y
2. |x-3|<=-Y


Thanks!

by briology

Sun Nov 20, 2011 10:23 pm
Forum: Data Sufficiency
Topic: Confusing Absolute Value Q
Replies: 2
Views: 1058

This is definitely something I struggle with. I can't seem to get my Verbal score over the 40 hump. According to my MGMAT test scores, RC/CR are my weakest verbal sections. I'm pretty much perfect up until 700-->800 lvl questions, then my accuracy falls dramatically to ~40% (possibly lower--I can't ...

by briology

Wed Oct 26, 2011 9:46 am
Forum: Reading Comprehension
Topic: MGMAT hard inference Q
Replies: 16
Views: 4943

Thanks, Ron. That was incredibly, incredibly helpful. I got so caught up in "must be true" thought that I didn't really consider what the question was asking.

by briology

Tue Oct 25, 2011 6:11 pm
Forum: Reading Comprehension
Topic: MGMAT hard inference Q
Replies: 16
Views: 4943

OA is B. How did you guys eliminate answer choice E?

by briology

Wed Oct 19, 2011 4:14 pm
Forum: Reading Comprehension
Topic: MGMAT hard inference Q
Replies: 16
Views: 4943

Can we re-write A as below? Women who do more regular volunteer work than men do tend to live longer. Is it still same as option A? I was confused here only. Phrased this way, I don't think A works anymore. Your re-phrase qualifies women as women WHO do more volunteer work than men tend to live lon...

by briology

Tue Oct 18, 2011 8:18 am
Forum: Critical Reasoning
Topic: When people engage
Replies: 21
Views: 12245

I'm more interested in why you think it's B than what the answer is :). Why do you think it's B?

by briology

Mon Oct 17, 2011 6:31 am
Forum: Reading Comprehension
Topic: MGMAT hard inference Q
Replies: 16
Views: 4943

MGMAT hard inference Q

I got this difficult reading comp question yesterday on a MGMAT test. Even after reading mgmat's explanations I still feel that two of the answer choices are correct. Would love to hear what others think. OA after some responses. Measuring more than five feet tall and ten feet long, the Javan rhino...

by briology

Sun Oct 16, 2011 9:20 am
Forum: Reading Comprehension
Topic: MGMAT hard inference Q
Replies: 16
Views: 4943

Bakery Question

A certain bakery ran a promotion: a customer can buy x donuts for the regular price of $15 total and get 3 donuts free. If the donut price per dozen during the promotion is $2 less than the normal donut price per dozen, what is x?

A 15
B 18
C 21
D 25
E 30

OA after some answers.

by briology

Thu Oct 13, 2011 4:59 pm
Forum: Problem Solving
Topic: Bakery Question
Replies: 2
Views: 1545

Thanks. That makes a lot of sense. I didn't consider adding a foreign equation to the problem

by briology

Tue Oct 11, 2011 7:19 pm
Forum: Data Sufficiency
Topic: x2 + y2
Replies: 14
Views: 7459

Where does (x-y)^2 come from? I'm confused about how/why we're adding this with (x+y)^2

by briology

Tue Oct 11, 2011 9:48 am
Forum: Data Sufficiency
Topic: x2 + y2
Replies: 14
Views: 7459

Thanks. That was actually much easier than I thought!

by briology

Sat Oct 08, 2011 6:16 pm
Forum: Problem Solving
Topic: Function Problem
Replies: 5
Views: 1343

Yes--greater than 100. Sorry about that.

by briology

Sat Oct 08, 2011 5:48 pm
Forum: Problem Solving
Topic: Function Problem
Replies: 5
Views: 1343

Function Problem

A biologist finds that she can perfectly model the population growth G of a bacteria colony after n days using the function g=5,000((1+b/50)^n -1), where b represents the colony's birth rate in cells per day. If the biologist takes this birth rate to be a fixed value, is the rate greater than 100 ce...

by briology

Sat Oct 08, 2011 4:44 pm
Forum: Problem Solving
Topic: Function Problem
Replies: 5
Views: 1343

I narrowed this down to A and C, but, even though C sounded better to my ear, I went with A because the 'it' pronoun in C seemed to be ambiguous. Why is the use of 'it' in C not a problem?

by briology

Thu Oct 06, 2011 5:24 pm
Forum: Sentence Correction
Topic: Quetzalcoatlus
Replies: 11
Views: 1595